Believed to be the smallest castle in Europe.

In the middle of a barren moorland, the remnants of a lost British Space Age stand like a 20th-century Stonehenge.

One man and his dog, immortalized in a giant statue.

The medieval-looking hammer beam teak roof may be a Victorian vanity, but it's still absolutely magnificent.

A stone burial chamber that was also the site of religious rituals.

A scene of a heinous act during a troubled period of Scottish history.

The Devil’s Porridge tells the story of HM Factory Gretna and the munitions girls who mixed deadly chemicals.

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

This ancient monument has been dissembled and put back together at least twice.

These upturned herring boats make nifty storage sheds for fishing goods.

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

This 16th-century tower house has a little hidden secret and a connection to an Apollo astronaut.

Fifty years of contamination in Scotland's waters.

Considered "the most original, complete, and unimproved" circles in Aberdeenshire.

England's "pier at the end of the universe" unites astronomy and contemporary architecture.

This 900-foot structure with 20 arches crossing a Scottish river was built in the late 19th century.

According to local legend, this church was built with two doors, so that residents of two rival villages had their own entrances.

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

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

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

These ruins are a hidden gem, complete with fantastic views over the cliff edge.

It's said taking a hammer and nail to this stone relieves a toothache.

Near this coastal cave stands a small memorial to the hermit who made it his home for three decades.

A former church that has been chronicling the Scottish island of Islay's rich history since the 70s.