This sacred cavern, 400 feet deep, is home to millions of bats and an ancient burial ground.

An abandoned quicksilver mining town surrounded by the Big Bend parks.

A spur fit for a giant sits just off Highway 281 in Texas.

This grimly-titled Texas cemetery is all that remains of a Wild West settlement with possibly the worst name.

255 feet of suds, scrubbers, and blow dryers.

An enormous pink granite batholith, long attributed with spiritual powers by the Tonkawa Indians.

A Texas cave network is home to some of the world's most spectacular-looking and bizarrely named mineral formations.

A 131-year-old wunderkammer of Texas history.

Craggy concrete faces are hidden in the walls of this artificial cave along the San Antonio River.

Modern technology and live displays tell the story of the Pacific during WWII for the Internet generation.

Texas's oldest bakery serves authentic German pastries, including legendary strudel.

Home to over 300 antique cars and motorcycles, including Thomas Edison's Model A.

This ancient Hawaiian henge may have been an early star chart.

This museum of Hawaiian and Polynesian culture is the legacy of the last descendant of the Kamehameha Dynasty.

Race through the maze, get your name on the sign.

Once the site of the Hawaiian monarchy, this building was originally designed as a palace.

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

Climbing this abandoned railway leads to breathtaking vistas of O‘ahu.

This World War II-era bunker is now packed with posters and props from movies and TV shows filmed nearby.

One of the highest points in Bexar county offers birdseye views of San Antonio and a four-story stone tower.

No one is sure why this mysterious tradition started.

This unique tower has been home to malaria-fighting bats for 100 years.

Three hundred years of preserved Spanish colonial history in San Antonio.

A unique cartoon-filled roadside attraction.