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Fira Gran Via in Barcelona

Intel goes flat with MWC ads

Samsung Galaxy Note 4 ad

Hotel Porta Fira

Huawei ads in Barcelona

Samsung teaser at MWC

Hashtag #MWC15

L'Hospitalet de Llobregat curries favor

MWC registration

Fira Gran Via flags

Swoopy Fira Gran Via

Vodafone 4G

Mobile World Congress moved to the Fira Gran Via in 2013, a more remote location with a more spacious conference hall.

Caption by / Photo by Stephen Shankland/CNET

The flat look isn't just for newer versions of Windows, Android and iOS. Intel, too, adopted the look for its ads near the Fira Gran Via.

Caption by / Photo by Stephen Shankland/CNET

At Mobile World Congress 2015, Samsung bought rights to the big posters in the Barcelona airport terminals. This ad touts the Galaxy Note 4 phablet, a 2014 model that will be upstaged by the newer (if smaller) Galaxy S6 phone at the show.

Caption by / Photo by Stephen Shankland/CNET

The Hotel Porta Fira, tri-lobed and red, is a distinctive landmark next to Mobile World Congress.

Caption by / Photo by Stephen Shankland/CNET

Chinese device manufacturer Huawei touted its high-end P7, G7 and Mate7 Android devices at the Barcelona airport baggage claim.

Caption by / Photo by Stephen Shankland/CNET

Samsung will unveil its next big smartphone, the Galaxy S6, at a Mobile World Congress event in Barcelona. This giant billboard is next to the Fira Gran Via, where the show takes place.

Caption by / Photo by Stephen Shankland/CNET

Wondering what hashtag to use for your Mobile World Congress 2015 tweets? Answer: #MWC15.

Caption by / Photo by Stephen Shankland/CNET

Mobile World Congress attendees grumbled in 2013 when the show moved away from its earlier location closer to central Barcelona to an industrial area west in L'Hospitalet de Llobregat, but the latter's city government is trying to make attendees feel better about the new digs. The more remote location means a lot more transit woes, especially for those traveling to off-site events at hotels in Barcelona.

Caption by / Photo by Stephen Shankland/CNET

The Fira Gran Via was quiet Saturday, but the vast registration hall is bracing for the onslought of tens of thousands of attendees.

Caption by / Photo by Stephen Shankland/CNET

Samsung bought out the Fira Gran Via flags for Mobile World Congress 2015, too.

Caption by / Photo by Stephen Shankland/CNET

It's not by Barcelona's most famous architect, Antoni Gaudi, but the Fira Gran Via conference center does embrace swoopy curves that go beyond the usual big-box look.

Caption by / Photo by Stephen Shankland/CNET

Underneath Samsung ads, UK carrier Vodafone bought video ad space to tout its 4G network service.

Caption by / Photo by Stephen Shankland/CNET
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