Reaching the "Church in the Sky" requires scaling the cliff face of a sandstone pinnacle with a 650-foot drop.

Supposedly this Ethiopian chapel holds the Ark of the Covenant, guarded by virgins who cannot leave the building.

Massive stele returned to Ethiopia after 70 years in Rome.

An ocean in the making, in the Ethiopian desert.

An otherworldly restaurant perched on the edge of a jagged cliff next to a medieval holy city.

Ethiopia's "smoking mountain" is in one of the hottest regions on the planet and is home to two lava lakes.

The hottest place on the planet.

An Ethiopian "Jerusalem" featuring a church hewn out of a single rock.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

Unexplained bald patches in the landscape grow and recede over time, as though they are somehow alive.

The oceanic dumping ground where spaceships go to die.

This deceptively salty lake looks like blushing pink lemonade.

This record setting conveyor belt system can even be seen from space.

An ancient instrument used to measure the waters of the Nile so Egyptian farmers would know whether to expect famine or flood.

A stone circle on the slopes of a Caribbean volcano commemorates the leader of an anti-slavery uprising.

This family tattoo parlor has been inking religious pilgrims in the Middle East for 700 years.

The wartime boat shelter now doubles as an underground concert hall where musicians play on rafts along the waterway.

All that remains of Jacques Cousteau's 1960s underwater "village."

The world's largest bioluminescent area was undiscovered by science until 2005.

This $62 million dollar temple was erected to house one little dental fragment of religious history.

This beautifully deceptive waterfall is something far different from what it appears to be.

Some 20,000 dust-covered unwanted vehicles languish in the desert.

These stairs were built to accommodate royals mounted on elephants.

This is not only one of the oldest collections in Europe, but also possibly the most beautiful.