London is a port city, and Britain became great because of its navy and ability to trade across the globe. The capital’s wealth is built upon that sea trade. There are reminders of London's maritime history everywhere. In Trafalgar Square, we commemorate the 1805 victory (and the death) of Admiral Lord Nelson at the Battle of Trafalgar. At Tower Hill, we remember the 36,000 merchant mariners lost at sea with no known grave. And the Museum of London Docklands examines the triangular trade in goods, sugar and slaves, upon which so much of the city’s wealth was built.

They may have to travel across an ocean to get here, but for Americans in London, home is never that far away. Britain and the United States have a long shared history, and there are many sites in London associated with America. They reflect the close political, cultural and military ties between the two countries. The term "special relationship," often used to refer to the Anglo-American friendship, was first coined by Britain's wartime Prime Minister, Winston Churchill, whose mother was American.