The Wachau is an Austrian valley with a landscape of high visibility formed by the Danube river. The Wachau was inscribed as "Wachau Cultural Landscape" in the Unesco's WHS list in 2000.On the card there's the Göttweig Abbey, the Steiner Tower in Kreams, the Göttweig Abbey again, Dürnstein and the Aggstein ruins.
In 1996, "the Millenary Benedictine Abbey of Pannonhalma and its Natural Environment" was elected among the World Heritage sites. - in: http://www.findagrave.com/cgi-bin/fg.cgi?page=cr&CRid=2388953
Carlsbad Caverns includes a large cave chamber, the Big Room, a natural limestone chamber which is almost 4,000 feet (1,220 m) long, 625 feet (191 m) wide, and 350 feet (110 m) high at the highest point. It is the third largest chamber in North America and the seventh largest in the world.