Looks like there's a lot of these 'places to see before you die' things going around. This one is certainly better than the NY Times List: Smithsonian Magazine (http://www.smithsonianmag.com/travel/lifelist.html)

– Mesa Verde
– Pompeii
– Tikal
– Petra
– Pyramids of Giza
– Taj Mahal
– Easter Island
– The Great Wall
– Aurora Borealis
– Serengeti
– Iguazu Falls
– Machu Picchu
– The Louvre
– Zen Garden of Kyoto
– Uffizi Gallery
– Fallingwater
– Yangtze River
– Antarctica
– Mount Kilimanjaro
– Grand Canyon
– Pagan
– Parthenon
– Angkor Wat
– Ephesus
– Venice
– Amazon Rain Forest
– Great Barrier Reef
– Galápagos Islands

Done 9 of these... quite a long way to go! But it seems quite a good list to be going on with...