Legend says this rock was once a chopping block for public executions.

A grave marker depicting a body snatching tableau on a 19th-century tombstone.

This unusual rock looks like a giant, otherworldly mushroom sprouting atop a cave.

A carved bench marks the Scottish cave that inspired the classic adventure novel "Treasure Island."

Come for the oysters, stay for the priceless art honoring inventors across history and Scotland's favorite outdoor sports.

The ornate structure is part of a building boasting more marble than the Vatican.

An ornate "graveyard" for some of the country's forlorn building relics.

This man-made waterfall was designed to help improve access for spawning salmon.

Described by William Wordsworth as a "World of Wonder."

A once extravagant mansion, now reduced to ruin.

This waterfall is one of the most spectacular natural features in the Scottish Lowlands.

It's said this was once the home of King James V's pet lion.

This pyramid is dedicated to all those who suffered martyrdom for civil and religious liberty in Scotland.

A medieval church built into an ancient cave.

A long strip of fossil-filled limestone makes up this natural bridge above a rushing stream.

This enormous secondhand bookstore inside a Victorian train station sparked the "Keep Calm and Carry On" craze.

A rocky outcrop where monks hid their most holy relic while escaping Danish invaders.

This 13th century castle is chock full of ghosts and impossibly rare cows.

These rock drawings in the Côa Valley also create an ancient optical illusion.

This little-known national museum houses over 40,000 works of art from across the world.

Panoramic views from the mountains over a facility built to provide tuberculosis patients with fresh mountain air.

This Gallo-Roman sanctuary is dedicated to Serápis, god of the underworld.

This abandoned fortress still stands guard over the Guadiana River despite a history of warfare.

This enigmatic Roman tower lurks just outside Belmonte.