[London, December 10. Image via Getty]

LONDON, ENGLAND - DECEMBER 10: A group of people dressed as space and time travellers arrive at Heathrow Airport on December 10, 2009 in London. The travellers are all friends, family and neighbours of Polish artist Pawel Althamer from Warsaw and are touring the world in a gold airliner to promote the artist's new exhibition 'Common Task' which will be on show at the Modern Art Oxford gallery in Oxford from December 12, 2009 to March 7, 2010. (Photo by Peter Macdiarmid/Getty Images)