On a dusty county road sit the ruins of a ghost town's abandoned church.

What remains of the summer palace of King Kamehameha III.

A Hawaiian stairway to heaven—that you can't climb.

A 1940's shrine dedicated to drowned fishermen on the outskirts of Honolulu.

An ode to one of the first concerts broadcast via satellite.

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

This airstrip atoll is uninhabited by humans, but absolutely full of birds.

A unique set of caves that spits waves back out into the ocean.

This WWII plane died a quiet death, and is now a garden eel playground.

This narrow coastline trail through the dense Kauai wilderness is among the most beautiful and dangerous in the world.

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

Everything in this miniature world was handmade from matches, paperclips, wires, tin cans, and other everyday objects.

This futuristically sylvan church is a glass-enclosed marvel of modern architecture.

A remarkably futuristic building sits in the oldest town in Louisiana.

This Art Deco airport was once deemed “the air hub of the Americas.”

A 19th-century Gothic, castle-like statehouse by the Mississippi River.

The world-record holder for the longest bridge stretching continuously over water.

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

Austin’s local mountain isn’t really a mountain at all.

The cremains of those who donated their bodies to science are buried in a tiny cemetery behind the building.

Roadside Americana, fairy tale characters, and Austin quirkiness come together at this magical course in the heart of Texas' capital city.

Locals dubbed it the "Owl Building" because of its bird-like appearance.

Established in 1925, Kiddie Park claims to be the oldest amusement park in the U.S. - a cozy little time warp nestled in a shady corner of the modern world.

The quirky gift from West Berlin for the 1968 World's Fair still stands in Hemisfair Park.