Volcanic rocks ground down into sand make this Spanish beach as black as night.

A pre-Hispanic pyramid in the middle of a tourist district in the Canary Islands.

These old towers extract salt from the sea.

Marvel at this massive waterspout fueled by the incoming tide.

This cave was the former seat of power for two brothers who ruled together as kings.

Hundreds of caves once used to store grains and animal feed.

An unexpected ghost village lurks on the southeast coast of Tenerife.

Lava stone structures possibly dating back to the 19th century may have been a stopping point for voyagers between ancient Egypt and the Mayan Civilization.

This local emblem is the oldest and largest dragon tree in the Canary Islands.

A space-grade telescope mirror lies discarded in the shrubs.

A large collection of solar and night-time telescopes dot a small area on the Teide mountain range.

This unique rock formation is quite the local celebrity, although one day it may come crashing down.

According to the Guanches, the aboriginal people of the Canary Islands, the king of evil lives inside this volcano.

A California city claims to be the home of a fast-food classic.

The only remaining U-boat that is still floating never actually saw any action in World War II.

The ruins of an abandoned crematorium haunt an eerie deserted German cemetery.

Living trees form the structure of an open-air palace.

The only microgravity tower in Europe can produce nine seconds of weightlessness.

The monument honors the first (and for a long time, only) African-born philosopher to teach at a German university.

The 3,600-year-old archeological sensation is considered to be the oldest representation of the cosmos.

Made from trees and then abandoned, this fence is still growing along a path in Germany.

Böttcherstraße's bells, extolling Nordic virtues and the great conquerors of the world.

A spitting ode to a German serial killer.

Where the interconnection of German power grids should be.