The world’s largest work of glass art hides in this stunning Taiwanese subway station.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

Hundreds of drawings left by the land's previous inhabitants remain mysterious.

Ancestral Puebloan ruins, natural arches, and box canyons abound in this seldom-visited corner of Monument Valley Navajo Tribal Park.

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

A hidden gem of a saloon in the middle of a ghost town.

A lovers' beach, tucked below the surface of the island, provides a safe haven for romance.

A 500-year-old series of tunnels long believed to be folkloric was uncovered beneath the streets of Puebla.

The highest point in South Carolina was once owned by an energy company that neglected it but now the state is taking it back.

A historic coal mine that doubles as a museum and tourist attraction.

A table rock formation that has been intriguing West Virginians for years.

Hikers can still stroll beneath the long conveyer of this abandoned mining facility hidden in a West Virginia river gorge.

A bizarre roadside attraction and the first instance of miniature golf in the world.

Famous for its bio-luminescent inhabitants, known as "dismalites."

This cave was hidden for thousands of years, storing the worldly goods of ancient Native Americans.

A psychological self-portrait in the form of a giant, segmented head.

Mysterious ancient boulder carved with petroglyphs in the mountains of Western North Carolina.

It should come as no surprise that the best view of the Hollywood sign is from Batman's lair.

Crumbling ruins mark the site of a couple's grisly murder in the woods.

The oldest bridge in South Carolina may have been designed by the same man who created the Washington Monument.

North Carolina's finest examples of Native American pictographs have survived for 5,000 years.

The remains of a chapel created for convenience.

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

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.