USA

As early as the 1850s tourism was an established industry for America, and although it receives a markedly lower number of tourists than our number 1 spot, the amount of revenue per visitor is the highest in the world. For many of America's states tourism is the largest industry, which meant that the fallout from the tragedy of 9/11 was enormous. The range of available attractions is vast, with over 100,000 different 'Things to Do' on Tripadvisor.

Everyone is familiar with the Empire State, the Grand Canyon, and the White House, but delving a little deeper into America's sights turns up a whole range of oddities like Texas' 60 tonne Cathedral of Junk, a Voodoo-Enhanced cemetery in New Orleans, and Iowa's Albert, the world's largest bull, who stands 30 feet tall and weighs in at 45 tons.