This popular pitstop lives up to its name.

Twenty-seven massive radio antennas on the high plains of New Mexico search for life on other planets.

A one-of-a-kind sundial at the Very Large Array honors a radio astronomy pioneer, incorporating the original piers from his breakthrough radio telescope.

Fresh wooden posts have been added to ancient holes to recreate a primitive henge clock.

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

This "castle" is actually a limestone and quartz formation hidden along a trail.

This cannon dating to 1755 has stood guard at this suburban intersection since 1915.

This quirky hot springs town known to locals as "T or C" was named after a radio show.

This building is a recreation of the gatehouse that separated Los Alamos from the outside world during the era of the Manhattan Project.

Legends surround this jagged rock formation in the New Mexico desert.

The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

There’s a hidden military meme engraved on the World War II Memorial.

These boots are made for selfies.

A National Historic Landmark with a scenic clock tower and park filled with deer and peacocks, plus a military museum.

Soldiers honored the beloved Pat with a special grave.

Few other hotels can rival the grandeur of the Castle in the Rockies.

Though it was originally dedicated to the Hindu god Shiva, Baphuon was converted to a Buddhist temple in the 15th century, complete with a massive hidden statue.

Bombed and burned, this monument represents the often controversial ties between Vietnam and Cambodia.

Khmer Rouge's high security prison.

5,000 skulls in memorial to those killed by the Khmer Rouge.

Monkeys lounge around at this 13th century temple.

In the world's most bombed country relative to its size, this incredible organization helps pick up the pieces.

Nelson Mandela lived here with his family from 1946 until his arrest in 1962.

This African beach is home to thousands of rare mainland penguins that are known for their annoying voice.