These sacred Mesoamerican ruins feature peculiar petroglyphs hidden in the stones.

Start your morning off with an epic food crawl in this market east of Oaxaca’s historic center.

Once the grandest synagogue in medieval Spain, it now stands as a memorial of the 15th-century Jewish exile.

The ruins of an ancient stadium that hosted gripping chariot and horse races.

The water of this well in Toledo lost its sweetness after the death of a young love.

An homage to the first Spanish cyclist to win the Tour de France.

This ancient Roman cistern has been the source of many legends throughout the centuries.

At least according to the Guinness World Records.

Tombstones and enigmatic inscriptions hide within a vault beneath a popular London arts venue.

The first geometric self-supporting spiral stairs in Britain are a truly beautiful sight.

A close look reveals that the Scottish monument is just slightly off-kilter.

Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.

The longest staircase lock in Britain.

A double cantilever system bridge that was designed to prevent flood damage.

This site contains overlapping ancient graveyards that existed about 1,000 years apart.

Where the sleeping monsters of Scotland's oil industry are left to rust.

The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

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.

An unpaid bill, a stolen stone, and a famous fashion designer rest peacefully alongside a heroine of Highlands history.

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

Spend the night in this formerly abandoned traditional Scottish village.

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