A time-capsule monument reminding future generations of the importance of efficient and effective use of natural resources.

Living trees form the structure of an open-air palace.

One of America's first dinosaur parks gives a window into Depression-era paleontology.

French Time Capsule-19th Century home revealed to the public.

Steam out your ears for New Year's Eve.

4,000 monkeys used for medical testing on an island off of South Carolina.

An homage to everyone's favorite prehistoric cartoon family.

This ghost town in Belgium will lose its street art when it ceases to exist.

A 1970s resort city now stands abandoned, caught in the middle of a divided island.

Siberian husky that delivered a life-saving antitoxin.

Home of Philip Johnson, one of the 20th century's most influential architects.

Eco-village hidden in the foothills of the Alps that created a massive system of psychedelic underground temples.

Most-visited and most-photographed slot canyon in the American Southwest.

Fall down the rabbit hole into a surreal journey of human consciousness "from ass to soul."

Palace where the nearly un-killable Rasputin was murdered.

One of the world's oldest and most massive living organisms is a grove of quaking aspens.

Home of St. Urho, the fictional patron saint of Finland.

Natural cathedral designed by Italian artist Giuliano Mauri.

The world's first time capsule lies behind a welded steel door in Atlanta.

The mummified right fist of a 1,000-year-old saint-king sits inside an ornate golden reliquary.

A morbid secret lies hidden within the beautiful walls of the Boston Athenaeum.

A sculpture for the sun and stars, created by Nancy Holt.

A huge musical sculpture and other art installations on the National Oceanic and Atmospheric Administration grounds.

An eccentric inventor's castle home with its own indoor weather system.