Legend says this sacred tree was a gift from goddess Athena.

In the past, Renaissance sex workers were encouraged to entice customers on this bridge.

Hanging within this medieval church are the bones of a beast allegedly slain by a fourth-century saint.

Go inside to really appreciate this 500-year-old technological masterpiece.

This palatial spiral staircase was so unusual the name "snail" was given to the noble family who built it.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

Eighteen miniature death-scene dioramas.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

Ruins of a Carnegie family mansion on Cumberland Island.

The longest navigable underground river in the United States is home to countless blind and albino animals.

One of the most well-preserved temples of ancient Egypt.

Known as the Sistine Chapel of Egypt, this tomb houses some of the most well-preserved paintings in Egypt.

This unassuming tree stump reportedly traces its roots to the famous pharaoh queen's reign.

These Egyptian statues have survived for 3,400 years and were an acoustic wonder of the ancient world.

An alien landscape of chalk-rock in the Egyptian desert.

This ancient structure is widely thought to be the oldest intact pyramid in the world.

The king of U.S. high points towers over every other peak on the continent.

North America's first frozen mummified remains of an ice age steppe bison, the 36,000 year-old mummy named "Blue Babe."

Gorgeous cave resemble a winter wonderland.

Considered by many to be one of the most dangerous highways in Alaska.

In the mountains of West Virginia is this perfectly preserved Art Deco train station.

Dim sum, served in a grand old theater.

A take-out restaurant that only serves cuisine from countries with which the United States is in conflict.

Nimrod Polar Expedition base, and home to hundred-year-old frozen whisky.