Road Trip Pic of the Day, 6/18: What is this?

Next week, Road Trip 2010 gets under way. But that doesn't mean you have to wait to participate in the Picture of the Day challenge. If you know what this picture is and where it's located, you could win a prize.

If you know what this is and where it is located, you could win a prize in Friday's Picture of the Day challenge. Daniel Terdiman/CNET

Update (Sunday, 11:35 a.m.): The answer to Friday's Picture of the Day challenge is a Titan missile in the Titan Missile Museum in Green Valley, Arizona, near Tucson. I also accepted those who said it was in Sahuarita, Arizona. All told, 46 people had the right answer. Come back Monday for the next challenge.

If you've been following the daily Picture of the Day challenges over the last couple of weeks, you know that Thursday was about as easy as it can be. Almost everyone got it right. So for Friday, I'm making it a little bit harder. I'm sure a lot of people will still get the right answer, but I bet not nearly as many.

As always, I'm looking for responses that correctly identify both what this is and where it's located.

So if you have those answers, please e-mail them to me no later than 6 p.m. Pacific time Friday (at daniel--dot--terdiman--at--cnet--dot--com, including "Picture of the Day" in the subject line). I'll choose a winner at random from among everyone who sends in both pieces of the correct answer. Please forgive me if you don't hear from me if you're not the winner. I get dozens of responses each day.

Also, I've turned off comments because some people have been posting the correct answers there. I hate to shut down discussion, but I want you to figure out the answer on your own.

And one caveat: no individual can win more than two prizes. But at the end of the trip, I'll be drawing a name from among all the daily challenge winners and giving out something a little more substantial to that person.

On June 24, CNET News reporter Daniel Terdiman and his Geek Gestalt blog will kick off Road Trip 2010. After driving more than 18,000 miles in the Rocky Mountains, the Pacific Northwest, the Southwest and the Southeast over the last four years, I'll be looking for the best in technology, science, military, nature, aviation, and more throughout the American northeast. If you have a suggestion for someplace to visit, drop me a line. In the meantime, you can follow my preparations for the project on Twitter @GreeterDan and @RoadTrip.

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