A beautiful and abandoned New York subway station from 1904, complete with chandelier.

Wooden pathways run through this rocky landscape, which legend says was created when a dwarven king pulled down his own castle to stop raiding giants.

At the base of Peña de Bernal, a small business keeps evidence of alleged extraterrestrial visitors on display.

Ride a boat through this magnificent underground world, which now doubles as a theater.

Nine caves filled with recently-discovered archaeological finds under the houses and the streets of the most ancient district of an old town.

An industrial site turned into Hungary's most cherished natural wonder.

A little piece of the Shire is hidden behind a plant nursery in Port Orchard, Washington.

Bonsai trees that are up to a thousand years old.

Overlooking Puget Sound sits a garden with a Buddhist prayer wheel and an elaborate labyrinth.

This monument remembers the first Japanese Americans forcibly relocated during World War II.

Mysterious ancient petroglyphs carved on a glacial boulder at the tip of Bainbridge Island.

The boulder is a landmark, public art, and an icon.

The world's largest egg has been cracked a number of times over the years but has been repeatedly replaced.

Native American burial mounds? Giant gopher dens? No one knows what created the Mima Mounds.

Spectacular views await visitors to this lake.

A once celebrated industrial wonder now lurks in a quiet corner of Flathead Lake.

Operational for less than a year, this mill produced more than 11,000 tons of chrome concentrate in its short lifespan.

This medieval village/restaurant perpetually celebrates the year 1376.

This Cold War missile launch site has been abandoned for 40 years.