The long-lost final resting place of an accused witch.

Even though some of the buildings date back to the Victorian era, this research institute is still involved in cutting-edge astronomy research.

Where the Border Reivers of the Johnstone clan used to hide their stolen cattle.

Believed to be the capital of the the ancient kingdom of Dál Riata.

In 1990, this 37-foot red steel bottle sailed from New York to England.

A Bronze age settlement on the Greek island of Santorini might have been the inspiration for Plato's Atlantis.

A former factory serves as a shrine to the industry that sustained Santorini for decades.

This black sand beach was crafted from volcanic explosions including the historic Minoan eruption.

Cut into a sheer cliff face, these stairs are the only way to reach a secluded Scottish harbor.

Several bricks indicate the various flood levels this crossing has survived over the centuries.

A cottage built at the birthplace of Alexander Selkirk, a sailor who inspired the novel 'Robinson Crusoe.'

Designed to allow funerals to proceed over the River Dulnain.

This pink watchtower served as the seat of the Greek government after independence from the Turks.

Learn about the sweet, storied legacy of beekeeping in ancient Greece.

The ruins of an ancient Roman tomb hidden in the basement of a trendy clothing store.

This Ottoman-era Greek Orthodox Church was built to honor Agia Pareskevi, a Christian saint.

This small 16th-century church in Athens is almost entirely surrounded by a modern building.

This abandoned shopping arcade has new life as an art installation.

Where commuters walk through remnants of an ancient Greek necropolis.

Preserved portions of Athens's ancient defenses are on display in a subterranean parking garage.

An icy lake tucked among jaw-dropping alpine panoramas.

Spanish architects used seized Muslim gravestones to rebuild parts of the fortress.

Collection of fossils, plants, and ancient animals encased in amber.

The recurring nature of this geographic feature might make it unique in the world.