
Ivrea, Italy: The Battle of Oranges
The origins of this festival are not well understood, particularly because oranges do not grow in the Alps of Italy, where the town is located. One legend has it that the Battle commemorates a popular rebellion of the 13th century, when the local poor deemed the largess of their feudal lord as inadequate, and threw it back in his face.

Boston, USA: Zombie March
For the third straight year, Bostonians dressed as zombies marched from Boston to Cambridge's Harvard Square in what organizers call a non-political, no-agenda good time.

Bunyol, Spain: Tomatina
Every year, over 30,000 tourists come to Bunyol for this festival. Rules of conduct keep the festivities from becoming a more dangerous brawl.

Eastern Island, Chile: Tapati Festival
A week-long festival begun in the 1970s in an effort to drum up more tourism, Tapati includes a triathlon in which native participates run around the lake of the Rano Raraku vulcano carrying a large bunch of bananas.
The World's Wackiest Holidays - I