Built in 1917, this building is home to the last working spring-loaded dance floor in Utah.

Accessible only by boat, this centuries-old island fort never saw troops or combat.

This sculpture honors the man who was known as the "Righteous Among the Nations."

A hidden three-foot-wide house separates these two regal churches.

A unique work of automotive art calls this shopping center home.

This amazing 15th-century mural remained hidden in plain sight for centuries.

The forgotten remnants of a land-to-sea cable car that was once unique in the world.

Far from the shore, this sandy victim of the Skeleton Coast looks like it was plopped in the middle of the desert.

This roadside wonder is as mysterious as it is beloved.

An ancient system of freshwater caves filled with animal bones, including that of species long-extinct.

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

A mixture of strange symbols, ciphers, words and cryptograms carved in 1876 remain unsolved to this day.

The remote outlaw hideout of Jesse James, Butch Cassidy, and the Sundance Kid.

Over 100 towers were built in Bologna during the Middle Ages, but only 22 survive.

The oldest continuously-operated inn in the United States, once owned by Henry Ford.

Dedicated to one of the nation's worst engineering disasters.

Overlooking the Colorado Convention Center is this giant sculpture made from thousands of triangles.

After funding was cut for a memorial to the Danish author, the sculptor had his statue ceremonially lowered into the city harbor.

At more than 5,000 years old, these structures are among the oldest free-standing stone buildings in the world.

Once a training ground for Olympic athletes, this artificial ski slope has fallen into ruin after a fire in 2012.

A small cave hidden deep within the Jenny Jump State Forest.

1,001 carved statues of the Buddhist God of Mercy, each with a unique face.

Legend holds eating just one of these black eggs can add seven years to one's life.

A blooming house of worship for the masses.