On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

A formerly glacier-tipped volcano that inspired none other than Jules Verne.

This mountain fissure hides a secret path to a secluded mossy grotto within the rock itself.

Iceland's largest lagoon is home to stunning multi-colored icebergs.

Three columns of volcanic rock shoot out of the ocean.

This wrecked airplane has been sitting on a black sand beach since the 1970s.

Twisted girders are all that remain of an Icelandic bridge that was wiped out by a combination of volcanic heat and glacial floods.

This eye-popping Icelandic crater lake is surrounded by red volcanic rock.

A sulfuric martian landscape that looks far better than it smells.

These ominous lava formations were said to be an entrance to the netherworld so of course they inspired a famous metal band.

This hobbit-y little hot spring may be the oldest spring used by humans in all of Iceland.

This elegant arc of a waterfall marks a religious turning point.

Rising from the sea like a stone monster.

Partially collapsed lava tube and cave system complete with concert hall, underground pond, and unique albino crabs.

Visit a surreal landscape so otherworldly NASA actually used it to train the Apollo 17 crew.

This mountaintop observatory is home to one of the world's largest reflective telescopes.

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.

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

Roman ruins top white travertine terraces formed by ancient hot springs.

Over 315,000 preserved amphibians and reptiles in jars.

This former stomping grounds of the most eminent astronomers of the early 20th century.

The most playful of the life-sized statues that make up Singapore's "People of the River."

The largest pool at its elevation sits on top of one of the most expensive resorts in the world.

This stunning concert hall has become a symbol of Iceland's national recovery.