Most eyes in London will be on today's sure-to-be-stunning opening ceremonies, but the city's most famous sights will also serve as highlights for visitors during the games.
Ahead of the Olympics, mobile app Foursquare has released its list of the most popular tourist attractions, and while there are few surprises on the list, it's a handy reminder of all that London has to offer.
The city is full of fantastic museums and beautiful parks, and its famous Tower Bridge is an icon recognized worldwide. (And it's recently been decked out with Olympic rings in honor of the games.)
Here's a look at what's tops in town, according to Foursquare users.
Tower of London
Victoria and Albert Museum
Royal Festival Hall