A journey begins with a single step, and for many, the road-trip of a lifetime started at this Chicago intersection.

A sign at the end of the Santa Monica Pier marks the traditional end of the legendary American highway.

The ruins of a once-grand castle that played host to a tournament with 100,000 attendees.

A 5,000-year-old city in Peru holds the remains of a stunning set of astronomically-aligned pyramids.

This walk to the Pacific Ocean is surrounded by modern statues of Mochica Gods.

A unique collection of old miners' cave homes carved in to the hillside cliffs near Death Valley.

Dedicated to the largest armed uprising in American history since the Civil War.

Artifacts from a battleship sunk at Pearl Harbor displayed in the Capitol building of its namesake.

Archaeologists believe this panel of petroglyphs depicting descending sheep and other figures in Glen Canyon are 3,000 to 6,000 years old.

An ancient Greek monument and a Byzantine church coexist inside this cave.

The oldest vestiges of Madrid found here, have been incorporated into this new museum.

A Spanish Colonial fort now houses an archeology museum.

A scenic UNESCO site that doubles as a habitat for various forms of wildlife.

One of the best collections of Byzantine art housed in a magnificent, 19th-century neoclassical home.

See a full-scale whale skeleton and experience the captivating culture of Alaska’s Native people at this heritage center in east Anchorage.

Tour a Cold War-era U.S. military missile launch site in Anchorage.

America's first wax museum opened in 1948.

Dedicated to the outnumbered Finnish forces who pushed back Soviet forces during the conflict.

Memorial to the victims of the Holocaust in Serbia.

Nestled at the southern end of the Bay of Vlore in Albania resides ruins that contain Illyrian, Greek, and Roman influences.

Isak Heartstone, a 15-foot wooden troll made out of recycled materials.

The remains of a prehistoric settlement with a museum showcasing fascinating archaeological finds next to modern artworks.

The Reagan Peace Garden at Eureka College features a chunk of the Berlin Wall.

The largest and best preserved necropolis in the Western Mediterranean.