London's Smallest Hotel

London's newest claim to fame is the world's smallest pop-up hotel, opened by Visit London. The converted luxury American Airstream hotel, which teamed up with Radisson Edwardian Hotels, measures just 203 square feet, outdoing the previous smallest hotel, located in the Bavarian town of Amberg, which measures 603 feet.

In its tiny space it is able to offer a concierge, check-in desk, room service, flat screen TV, sound system, fridge and dining area, double bed, en-suite facilities and more.

Another cool feature? The hotel is mobile. For the week that the hotel will be open (March 15-19) it will be positioned in a new hot London location each night including ZSL London Zoo, Alexandra Palace, The Merlin Entertainments London Eye, Covent Garden and the Old Royal Naval College, Greenwich.

Visitors to the city can win an opportunity to stay in this hotel for one night for free. This event is part of Visit London's "Only in London" campagin.