This rare surviving broch is one of Scotland's most impressive Bronze Age structures.

This Scottish castle has witnessed clan rivalries, Jacobite uprisings, whisky smuggling, and more.

This eclectic sanctuary is a hodgepodge of various architectural styles, all crammed into one building.

Overlooking the burial ground is a tower designed to prevent thieves from snatching the recently deceased.

A nuclear bunker built to shelter the politicians and important people of Scotland in case of nuclear attack.

The ruins of a medieval seminary some say is the oldest university site in Scotland.

A mysterious ruin shrouded in more folklore than fact.

This repurposed church offers a more literal way to get closer to the heavens.

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

What happened to the three lighthouse keepers who vanished from this place remains a mystery over a century later.

A historic cave in Scotland once served as a hiding place for a famous Covenanter.

This alley off Edinburgh's Royal Mile contains remnants of the city's seedier history.

Overlooking a Scottish loch, this beautifully crumbling castle once inspired a poem by William Wordsworth.

Remnants of the 16th-century defensive wall still stand unassumingly within Edinburgh.

A sea cave with a waterfall and Viking past

A castle in the Scottish Highlands has been continuously inhabited since the 1300s.

Old-fashioned knowledge and modern engineering create the world's only rotating boatlift.

The mystery of this small, brick pond eluded its possibly only investigator until his death.

A mysterious monument where a woman who records say never existed was burnt alive for being a witch.

Legend says a witch conjured the world's third largest whirlpool to protect Scotland from a nasty pirate.

This cramped crevasse saw the entire population of its island suffocated inside its depths.

Monty Python fans will recognize this abandoned mine as the Cave of the Killer Rabbit of Caerbannog.

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

Near the former site of numerous witch burnings, this lavish Edinburgh mainstay pays homage to Scotland's brutal history.