Monasteries on rock pillars, once accessible only by frayed ropes.

A man-made slag heap that you can "ski" down, and is home to the world sandboarding championships.

According to the local folklore, the myriad colors of this lake are the result of a lovelorn wizard's blunder.

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

A stratovolcano located in the south of Iceland, with a long history of charted activity and a rich mythology attached.

A winding, blood-red tunnel of hardened lava navigable by foot.

This natural Icelandic fissure allows divers to swim right between two volatile tectonic plates.

This modern monument to pagan belief looks like it was transported straight from ancient times.

The most powerful waterfall in all of Europe.

Climb right into the heart of this colorful Iceland volcano.

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

Walk in the footsteps of the gods and straddle two tectonic plates.

Iceland's "Smoky Valley" is a beautiful river that is shrouded in a constant cover of steam clouds.

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

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

This fantastical waterfall is hidden in a cave located in a cracked cliff.

This volcanic cave lake is essentially hard proof that Iceland is the most magical place on Earth.

Rising from the sea like a stone monster.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

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

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

150 or so scrounged-up lamps, chandeliers, and lanterns light up this alley in central Athens.

Hidden in a secluded Greek cove is a pristine beach marred only by the rusting smuggler's hulk stranded on its shores.

A naturally beautiful, seemingly bottomless deep blue spring.