They squeal, they nosh, they look like predators.

In paradise, feral pigs have claimed an island all to themselves.

A sanctuary for sickly, stray, or wounded donkeys.

This red lake 4,000 meters above sea level is home to rare flamingos.

A seemingly endless landscape of pure salt stretches far across Bolivia.

The stones of this Incan wall complex fit together so well you couldn't fit a piece of paper between some of them.

The Uros people live on floating reed islands in lake Titicaca.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

The winter home of millions of migrating monarch butterflies.

A lovers' beach, tucked below the surface of the island, provides a safe haven for romance.

Houses are tucked between, on, and underneath giant boulders.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

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

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

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

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

Tubing through a cave lit with glowworms is a magical underground experience.

The real life Hobbiton, this sheep farm has been forever transformed since being built for The Hobbit film series.

Hot springs monkey spa in the middle of Hell's Valley.

The macabre collection of Jacques Sirgent, an expert scholar on the undead and all of their trappings.

A collision of human error and natural geothermal pressure created this rainbow-colored geologic wonder.

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