I read Kraig’s Adventure Blog every day.
He linked to yet another life list:
Smithsonian Magazine has put together another interesting list for us, this time it’s their 28 Must See Sights from around the World. They call it their version of the Life List and their eclectic group of travelers came up with some really great places to visit on your journeys abroad. …
The Adventure Blog: Smithsonian Magazine‘s 28 Must See Sights
I have 10 left to visit:
Feats of Engineering
The world’s surviving architectural wonders hewed from stone and mortar beckon as ever
– Easter IslandA Matter of Timing
Choosing the right year, month or even moment can make all the difference
– Serengeti
– Iguazu FallsTriumphs of Vision
Come face to face with history’s finest works of art and design
– FallingwaterScale New Heights
Don’t just see nature’s most spectacular sites—experience them
– Yangtze River
– Antarctica
– Mount KilimanjaroIn the Presence of Gods
Encounter temples so magnificent then could only have been built by divine inspiration
– EphesusHere Today, Gone Tomorrow?
Visit these deteriorating or threatened destinations before they disappear
– Great Barrier Reef
– Galápagos Islands
The only one not well known of those is Falling Water. It’s a house.
Frank Lloyd Wright completed Fallingwater in 1937, and months later Time magazine put the house on its cover, proclaiming it the architect’s “most beautiful job.” Ayn Rand based much of her 1943 classic, The Fountainhead, on Wright and the house he had wrought.
Rick McCharles 
The house certainly looks spectacular, but it was a design and construction disaster from the beginning, with cracked concrete and sagging cantilevered decks, which have been propped up. For more see http://www.wpconline.org/fallingwater/building/preservation.htm