Modern design and unusual architecture make this mountaintop temple no ordinary Buddhist retreat.

Massive series of 45 caves and over 51,000 sculptures carved from cliffsides in China.

Discovered after draining a local pond, these ancient man-made caves are still a complete mystery.

A secretive collection featuring objects that were designed specifically for U.S. intelligence operations.

A single artist is behind these large-scale models made of hundreds of thousands of two-inch wooden matchsticks.

One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.

A massive underwater sinkhole made famous by Jacques Cousteau.

Mother Nature outdoes herself with this stunningly beautiful set of caves carved into marble.

Tour the world's largest deep-hole dimension granite quarry, where you can view the plant where gravestones are made and roll a ball down the outdoor granite bowling alley.

Beautiful hillside Vermont cemetery with amazing funerary art.

The sweetest graveyard in the world is filled with headstones for dearly de-pinted ice cream flavors.

Vikings and Evangelicals have both had a hand in this replica medieval church.

A bizarre house filled with an astounding array of collections.

This cave holds a surprisingly colorful variety of geological oddities.

"World's largest scrap metal sculpture" stands in an outdoor sculpture garden in the middle of Wisconsin.

Hidden away in the city of Madison, Wisconsin is a nearly forgotten home that Frank Lloyd Wright built for a childhood friend.

The home of 1.5 million wood letters for printing is still a functioning workshop.

America's oldest archaeological site or a muddled case of wishful thinking.