The only arched bridge made of stone on the entire Mississippi River.

A pair of mutilated bronze octopuses slump at the base of the monument honoring California's admission to the U.S.

Meant to be one of the most extravagant hotels in the world, now an eerie, abandoned architectural gem in Mexico City.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

This lush forest valley was once mined for lumber to the extent that it was once nicknamed "The Pennsylvania Desert."

The largest piece of no man's land left on Earth.

A modern Nordic Pompeii on the Icelandic island of Heimaey.

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

The summer tourists on these cliffs are thousands of seabirds.

This remote eatery and museum is preserved as a time capsule of a small Icelandic fishing town.

The oldest steel ship in Iceland has been beached for years and is now a rusting ruin.

This natural rock formation features seemingly unnatural vertical ridges that have been blamed on elves.

This scenic Icelandic lava flow is named for a pair of Berserkers who were murdered, according to a famous Saga.

This black church sits alone among a field of lava rock.

A modern artist's primitive stone faces and unique rock instrument join Iceland's terrain with its history.

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

The oldest hall in Iceland was written of in the Sagas and features a centuries-old escape tunnel.

Outlaws, hot springs, and tragedy have all left their mark on this ancient road in the Icelandic highlands.

Largest private bird collection in Iceland, formed from a tragic accident.

This collection of unique liquids allows visitors to wander the waters of Iceland's glaciers.

Three million year old fossils are exposed for all to see on this Icelandic shore.

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

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

This tumultuous Icelandic lava field looks so alien European researchers want to use it as a stand-in for Mars.