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

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

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

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

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

This beautiful, historic church looks like something out of a simpler past.

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

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

Pompeii's less famous neighbor is still revealing her secrets.

Relics of Australia's convict past, and a modern scene of unimaginable horror.

A statue in the center of Dublin dedicated to one of their favorite sons of rock & roll.

This singular Irish dolmen is more Frank Lloyd Wright than upright stonehenge.

This South Pacific volcano has been blowing its stack for over 800 years and is said to be home to a cult leader waiting to be reborn.

Central America's deepest lake is actually a volcanic caldera, surrounded by three volcanoes.

The small cliffside monastery known as the Tiger's Nest is said to be the meditation site of an 8th-century Buddhist master.

This Himalayan airport provides one of the most difficult landings in the world.

Giant topiary dog once played a role in a terrorist bomb plot.

The bizarre visions of H.R. Giger, tucked away in a Swiss medieval city.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

An Art Nouveau building covered in animal gargoyles and grotesques.

This 1000 year old relic-filled cave monastery and UNESCO World Heritage Site also hosts an amazing micro-miniature museum.