Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

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

The "Gateway to the Arctic" connects Barrow's indigenous population with the sea and its traditional industry: whaling.

This small city where almost everyone lives in the same building can only be reached via North America's longest tunnel.

Colorful boxes placed over the dead are left to rot and crumble.

Upside-down trees serve as natural flower pots in this hanging garden of Alaska.

The king of U.S. high points towers over every other peak on the continent.

One person's lost luggage is another person's treasure.

This modern antique shop is a museum for 1980's Saturday morning cartoon culture.

When you visit his grave, be sure to rub the Great Emancipator's nose for good luck.

Singapore's landscaping project is home to 18 incredible Supertrees.

These rat eating Giant Malaysian Pitcher Plants may have evolved to eat shrew poop.

Explore a uniquely pristine Borneo forest, now protected by former headhunters turned tour guides.

A real-life "hobbit" cave in Flores, Indonesia.

Stenciled handprints and wall paintings dating back 10,000 years, some of the earliest forms of cave art.

The unique funeral practices of the Toraja can be seen here with graves carved into caves and hung off cliffs.

A gorge full of caverns where early humans lived alongside cave hyenas, giant mammoths and wooly rhinoceroses.

These 40,000-year-old stenciled hands are older than the famous cave art in France and Spain.

Think you have a tough job? Try carrying 200 kilos through a cloud of sulfur down the side of a volcano.

This Indonesian village was revitalized by a vibrant rainbow paint job.

Subterranean place of worship in Indonesia.

These broken shards of ancient ruin may hide an ancient pyramid.

An extraordinary museum devoted to the pop art legend created by Slovak artists.