This haunting monument honors the victims of 9/11.

The residents at this Yellowstone wildlife park will certify your cooler as "bear-proof."

This 35-foot troll in Jackson Hole, Wyoming, was made by the world’s leading recycling artist as part of a global fairytale.

This rustic old building is said to be the most photographed barn in America.

The only natural lake in the world that drains into both the Atlantic and Pacific Oceans.

An architect's childhood fantasy treehouse made real.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

A beautiful geyser under environmental threat.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

No Gordon Lightfoot song, only a barebones monument to greed.

Around half a million years ago, these magnificent columnar basalt cliffs were formed from cooling lava.

See the computer’s history revealed over the course of 20,000 years.

This unusual building straddles two countries.

A film center envisioned to rival Cannes ended up as a haunted place after at least 168 people were killed during the rushed construction.

It is believed that the historic tower is sinking at a rate of an inch a year, though no one is completely sure why.

This curious fresh and salt water lake holds a secret that draws in deep divers from around the world.

This statue of a medical missionary is sometimes used to gauge flood levels during typhoons.

The official flag of the short-lived Republic of Formosa.

These two 90-year-old statues were once part of a Japanese Shinto shrine.

This hike brings visitors closer to Taipei 101, once the world’s tallest building, than any other trail.

Step into this whimsical art installation based on a popular picture book.

Memorial to the father of the Republic of China.

Enormous pendulum helps keep Taiwan's tallest building from swaying.

An isolated dive site teeming with cnidarians.