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

Three columns of volcanic rock shoot out of the ocean.

The oldest (maybe) swimming pool in Iceland is a stunning oasis built into the side of a lush hill.

The largest whale museum in Europe allows visitors to walk among life-size giants.

This valley of hot springs and boiling mud pots is home to the record-holding "Geysir," which originated the English word.

An encyclopedic collection of mammal penises.

The most powerful waterfall in all of Europe.

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

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

Rising from the sea like a stone monster.

Medicinal spa created with the discharge from a geothermal energy plant.

Lithuania's outdoor sculpture trail of wooden folk art.

This bar and museum are devoted to the controversial comic book work of Kája Saudek.

Street artists transformed an abandoned air vent into the beloved Star Wars robot.

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

Macabre astrological automaton clock dating to the late 1400s.