Gateway Arch

ST. LOUIS -- For seven weeks, CNET readers were tasked with identifying photos in the Road Trip Picture of the Day Challenge. Each week, CNET reporter Daniel Terdiman gave away a GoPro camera to a winner selected at random from among anyone who submitted a correct answer that week. And at the end of the seven weeks, Terdiman selected two grand prize winners who were tied with the most correct answers during the challenge -- with 47 out of 49 each. Each won a complete GoPro camera package.

Here are all 49 daily photos, and the answers, which came from Illinois, Indiana, Ohio, Michigan, Nebraska, Missouri, Iowa, and Wisconsin, as well as Germany, California, and New York. Thanks to everyone who participated in the challenge this year, and to everyone, please come back next year for the 2014 CNET Road Trip Picture of the Day Challenge. You could win some great prizes.

The answer to the August 11 challenge -- which 361 people got right -- was the Gateway Arch in St. Louis, Mo.

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Photo by: Daniel Terdiman/CNET / Caption by:

World's busiest control tower

The answer to the August 10 challenge -- which 115 people got right -- was the control tower at Wittman Regional Airport in Oshkosh, Wis., which during the annual EAA AirVenture fly-in air show becomes the world's busiest control tower.

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Photo by: Daniel Terdiman/CNET / Caption by:

Strategic Air & Space Museum

The answer to the August 9 challenge -- which 83 people got right -- was the Strategic Air & Space Museum, in Ashland, Neb.

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Photo by: Daniel Terdiman/CNET / Caption by:

Frank Lloyd Wright's Wingspread

The answer to the August 8 challenge -- which 100 people got right -- was Frank Lloyd Wright's Wingspread, also known as the Herbert Johnson House, in Racine, Wis.

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Photo by: Daniel Terdiman/CNET / Caption by:

Goodyear tire proving grounds

The answer to the August 7 challenge -- which 94 people got right -- was Goodyear's tire proving grounds in Akron, Ohio.

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Photo by: Daniel Terdiman/CNET / Caption by:

The Dred Scott Courthouse

The answer to the August 6 challenge -- which 232 people got right -- was the Old Courthouse, in St. Louis, where the original Dred Scott decision was issued.

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Photo by: Daniel Terdiman/CNET / Caption by:

The answer to the August 5 challenge -- which 140 people got right -- was the Wind Point Lighthouse, in Racine, Wis.

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Photo by: Daniel Terdiman/CNET / Caption by:

The answer to the August 4 challenge -- which 27 people got right -- was Notre Dame Stadium at the University of Notre Dame in South Bend, Ind.

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Photo by: Daniel Terdiman/CNET / Caption by:

Buckminster Fuller's Dymaxion House

The answer to the August 3 challenge -- which 118 people got right -- was Buckminster Fuller's Dymaxion House, located at the Henry Ford Museum in Dearborn, Mich.

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Photo by: Daniel Terdiman/CNET / Caption by:

ConAgra world headquarters

The answer to the August 2 challenge -- which 36 people got right -- was the entrance to ConAgra Foods World Headquarters in Omaha, Neb.

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Photo by: Daniel Terdiman/CNET / Caption by:

The answer to the August 1 challenge -- which just four people, the fewest during this year's contest, got right -- was American Legion Post 209, Memorial Park, in Orfordville, Wis.

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Photo by: Daniel Terdiman/CNET / Caption by:

Santiago Calatrava's Milwaukee Art Museum

The answer to the July 31 challenge -- which 222 people got right -- was the Quadracci Pavilion at the Santiago Calatrava-designed Milwaukee Art Museum in Milwaukee, Wis.

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Photo by: Daniel Terdiman/CNET / Caption by:

World Chess Hall of Fame

The answer to the July 30 challenge -- which 190 people got right -- was the World Chess Hall of Fame, in St. Louis.

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Photo by: Daniel Terdiman/CNET / Caption by:

Congressional Medal of Honor Memorial

The answer to the July 29 challenge -- which 84 people got right -- was the Congressional Medal of Honor Memorial in Indianapolis, Ind.

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Photo by: Daniel Terdiman/CNET / Caption by:

Golden Rondelle Theater at SC Johnson headquarters

The answer to the July 28 challenge -- which 99 people got right -- was the Golden Rondelle Theater at SC Johnson headquarters in Racine, Wis.

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Photo by: Daniel Terdiman/CNET / Caption by:

Steve Tobin's 'Steelroots'

The answer to the July 27 challenge -- which 85 people got right -- was "Steelroots," by artist Steve Tobin, in Lincoln Park, Chicago.

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Photo by: Daniel Terdiman/CNET / Caption by:

Deeds Carillon at Carillon Historical Park

The answer to the July 26 challenge -- which 137 people got right -- was Deeds Carillon at Carillon Historical Park in Dayton, Ohio.

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Photo by: Daniel Terdiman/CNET / Caption by:

Monona Terrace Community and Convention Center

The answer to the July 25 challenge -- which 145 people got right -- was Monona Terrace Community and Convention Center, in Madison, Wis.

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Photo by: Daniel Terdiman/CNET / Caption by:

'Field of Dreams' movie site

The answer to the July 24 challenge -- which 314 people got right -- was the baseball field used in the movie "Field of Dreams," in Dyersville, Iowa.

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Photo by: Daniel Terdiman/CNET / Caption by:

Desert Dome at Henry Doorly Zoo

The answer to the July 23 challenge -- which 287 people got right -- was the Desert Dome at the Henry Doorly Zoo in Omaha, Neb.

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Photo by: Daniel Terdiman/CNET / Caption by:

The Golden Spike Tower

The answer to the July 22 challenge -- which 91 people got right -- was the Golden Spike Tower, alongside Union Pacific's Bailey Yard, in North Platte, Neb.

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Photo by: Daniel Terdiman/CNET / Caption by:

Christina Reiman Butterfly Wing at Reiman Gardens

The answer to the July 21 challenge -- which 35 people got right -- was the Christina Reiman Butterfly Wing at Reiman Gardens on the campus of Iowa State University in Ames, Iowa.

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Photo by: Daniel Terdiman/CNET / Caption by:

Chapel of the Resurrection

The answer to the July 20 challenge -- which 77 people got right -- was the Chapel of the Resurrection at Valparaiso University in Valparaiso, Ind.

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Photo by: Daniel Terdiman/CNET / Caption by:

Iowa State Capitol Building

The answer to the July 19 challenge -- which 168 people got right -- was the Iowa State Capitol building, in Des Moines, Iowa.

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Photo by: Daniel Terdiman/CNET / Caption by:

Notre Dame's Golden Dome

The answer to the July 18 challenge -- which 152 people got right -- was the Main Building, with its Golden Dome, at the University of Notre Dame in South Bend, Ind.

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Photo by: Daniel Terdiman/CNET / Caption by:

Hall of Heroes Superhero Museum

The answer to the July 17 challenge -- which 33 people got right -- was the Hall of Heroes Superhero Museum in Elkhart, Ind.

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Photo by: Daniel Terdiman/CNET / Caption by:

Gateway Arch Bridges

The answer to the July 16 challenge -- which 248 people got right -- was the so-called Gateway Arch Bridges, on I-94 at Taylor, Mich.

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Photo by: Daniel Terdiman/CNET / Caption by:

Ford's Regent Court building

The answer to the July 15 challenge -- which 61 people got right -- was the Ford Regent Court building in Dearborn, Mich.

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Photo by: Daniel Terdiman/CNET / Caption by:

Mark di Suvero's 'Shang'

The answer to the July 14 challenge -- which 65 people got right -- was Mark di Suvero's sculpture "Shang," located in front of the University of Michigan Museum of Art in Ann Arbor.

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Photo by: Daniel Terdiman/CNET / Caption by:

Jeans planters in Chicago

The answer to the July 13 challenge -- which 62 people got right -- was a set of jeans planters in front of the Willis Tower in Chicago.

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Photo by: Daniel Terdiman/CNET / Caption by:

Goodyear blimp hangar

The answer to the July 12 challenge -- which 79 people got right -- was Goodyear's Wingfoot Lake blimp hangar, in Mogadore, Ohio.

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Photo by: Daniel Terdiman/CNET / Caption by:

National Air Force Museum

The answer to the July 11 challenge -- which 95 people got right -- was the National Museum of the United States Air Force, located at Wright-Patterson Air Force Base in Dayton, Ohio.

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Frank Lloyd Wright's Heller House

The answer to the July 10 challenge -- which 137 people got right -- was the Isidore H. Heller House, designed by Frank Lloyd Wright, in Hyde Park, Chicago.

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Photo by: Daniel Terdiman/CNET / Caption by:

John A. Roebling Bridge

The answer to the July 9 challenge -- which 198 people got right -- was the John A. Roebling Suspension Bridge, which connects Cincinnati, Ohio to Covington, Ky.

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Huffman Prairie Flying Field

The answer to the July 8 challenge -- which 30 people got right -- was a replica of the Wright brothers' airplane catapult, at the Huffman Prairie Flying Field, in Dayton, Ohio.

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Celina Rotary Lighthouse

The answer to the July 7 challenge -- which 50 people got right -- was Celina Rotary Lighthouse on Grand Lake St. Mary's in Celina, Ohio.

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Photo by: Daniel Terdiman/CNET / Caption by:

Mansueto Library

The answer to the July 6 challenge -- which 153 people got right -- was the Joe and Rika Mansueto Library at the University of Chicago.

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Argonne National Laboratory Energy Sciences Building

The answer to the July 5 challenge -- which 21 people got right -- was the new Energy Sciences Building at Argonne National Laboratory in Lemont, Ill.

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Thomas M. Siebel Center for Computer Science

The answer to the July 4 challenge -- which 34 people got right -- was the Thomas M. Siebel Center for Computer Science at the University of Illinois in Champaign-Urbana.

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Bailey Yard

The answer to the July 3 challenge -- which 73 people got right -- was Union Pacific's Bailey Yard, the world's largest railroad classification yard, in North Platte, Neb.

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Photo by: Daniel Terdiman/CNET / Caption by:

Wrigley Field

The answer to the July 2 challenge -- which 161 people got right -- was Wrigley Field, home of the Chicago Cubs, in Chicago.

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Photo by: Daniel Terdiman/CNET / Caption by:

Holland Tunnel ventilation shaft building

The answer to the July 1 challenge -- which 115 people got right -- was the building that houses one of the ventilation shafts for the Holland Tunnel, which runs between New York City and New Jersey.

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New Bay Bridge tower

The answer to the June 30 challenge -- which 98 people got right -- was the (under construction) tower of the new eastern span of the San Francisco-Oakland Bay Bridge.

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Photo by: Daniel Terdiman/CNET / Caption by:

The High Line

The answer to the June 29 challenge -- which 164 people got right -- was High Line Park in Manhattan.

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Miniatur Wunderland airport

The answer to the June 28 challenge -- which 208 people got right -- was the model of Knuffingen Airport in Miniatur Wunderland in Hamburg Germany.

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Photo by: Daniel Terdiman/CNET / Caption by:

Frank Gehry's 'New York'

The answer to the June 27 challenge -- which 187 people got right -- was "New York," an apartment building designed by Frank Gehry in Manhattan. It was formerly known as Beekman Tower, and is also known as 8 Spruce St.

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Hyatt Regency hotel in San Francisco

The answer to the June 26 challenge -- which 64 people got right -- was the Hyatt Regency hotel in San Francisco.

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BMW Welt

The answer to the June 25 challenge -- which 200 people got right -- was BMW Welt, in Munich, Germany.

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Photo by: Daniel Terdiman/CNET / Caption by:

Neuschwanstein Castle

The answer to the June 24 challenge -- which 334 people got right -- was Neuschwanstein Castle, above the village of Hohenschwangau near Füssen in southwest Bavaria, Germany

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