Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

Look closely and you’ll notice that the color changes a third of the way up the tower.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

World's largest collection of serial killer artwork and other macabre exhibits.

Isolated atop this Balinese sea crag is a lovely Hindu temple that is said to be guarded by sea snakes.

The name of this ancient Indonesian temple translates as "Elephant Cave" but it could be more accurately called "The Hellmouth."

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

The oldest known university in the world is in Fez, Morocco.

Thousands of narrow alleyways in an ancient medieval city make up what's believed to be the world's largest car-free urban zone.

Traditional 11th-century outdoor tannery.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

An ancient Egyptian temple in the middle of Madrid, Spain.

Seaside ruins of a settlement that date back to the first century B.C.

Thanks to an acoustic anomaly, this unassuming stone bench has heard one hundred years of secrets.

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

This secret coastal village is studded with pastel-colored houses all piled on top of one another.

This steep cable railway has been hoisting passengers in the heart of Québec City for over a century.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

Macabre astrological automaton clock dating to the late 1400s.

Buenos Aires' city of the dead contains some very famous remains, including Eva Perón.

A series of waterfalls so massive they straddle the border of Argentina and Brazil.