Strange rock formations tower above the river that snakes through this enchanting Icelandic canyon.

This naturally heated mountainous creek has created a group of neon blue pools of potentially deadly boiling water.

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

Dolphins, ancient clams and hundreds of waterfalls make this one of the world's top tourist destinations.

An abandoned saucer-shaped monument in the Bulgarian mountains.

The oldest church in Iceland is one of the few to feature ornate decoration.

With well over 130 falls and cascades to brag about, Hamilton, Ontario has earned its stripes as the waterfall capital of the world.

Nature's biggest mammal swims in landlocked Oklahoma.

Don't blink or you'll miss it.

Large-scale contemporary artworks tower over fields and lurk in forests around a Jacobean manor house.

One of the American Southwest's most extensive collections of Navajo rock art.

One family's environment-friendly hobbit-house in Wales.

An abandoned mine now resembles a post-apocalyptic landscape of derelict buildings and blood-red pools of water.

Room 32 of the Alta Cienega Motel has grown into a shrine to the Lizard King.

This spectacular track has run continuously since 1882.

This fortress played a key role in the battle that would ultimately give rise to the Maratha Empire.

Traveling this mountain pass reveals quaint stone buildings, stunning Irish scenery, and a bridge said to grant wishes.

The only remnant of a small mining town is an abandoned railroad tunnel that is steeped in ghostly lore.

Prison made famous by The Shawshank Redemption has been out of commission since 1990.