An ancient Scottish rock formation said to be the gravesite of a giant remains ensconced in legend and intrigue.

Ancient cliffs resembling a kilt on Scotland's second largest island emit an entrancing sound.

Islanders once used this dramatic, otherworldly landscape to hide their cattle from Viking raiders.

This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.

The mysterious megaliths have enchanted and intrigued visitors for thousands of years.

A magnificent, iconic stone tower in the Scottish Highlands.

Spend the night in this formerly abandoned traditional Scottish village.

A whale's jawbone and a malfunctioning harpoon welcome you to the village of Bragar and its lore.

The 5,000-year-old megalith is believed to be Scotland's tallest standing stone.

A red-brick beacon stands against the tempestuous Atlantic, on the windiest site in the United Kingdom.

A flower grows on this giant stone that is said be able to control minds.

They squeal, they nosh, they look like predators.

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

One of the most accessible undersea plane wrecks in the world.

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

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

A 16th-century Andalusian palace.

Spain's unique Mosque-Cathedral has been a place of worship for both Muslims and Christians throughout its history.

Bacteria and algae give the salty water its bubblegum hue.

A "miracle" that seems to produce more holy fistfights than holy revelations.

Descend 2,030 years into the past in an ancient tunnel built to support Jerusalem's most famous wall.

An ancient underground cultic temple where sunlight penetrates on the summer solstice.

Life and death are on parade at the most reliably perilous site of “the Great Migration.”