This astronomically-aligned stone circle was the first of its kind to be built in Great Britain after a 3,000-year hiatus.

Edinburgh’s version of the Sistine Chapel is this former church, with an interior covered in paintings done by one woman over the course of nearly a decade.

The ruins of a defunct limestone quarry still haunt this Scottish promontory.

More than a century old, this cast iron bridge on the Balmoral Estate leads to nowhere.

Wander around the extensive remains of this 12th-century medieval church.

Vibrant paintings stretch across 600 feet of derelict railway.

Though difficult to access, this stunning cave has a place in Scotland's poetic history.

The highest lighthouse in Scotland shines from an abandoned island.

An abandoned, desolate train tunnel that was used during World War II.

This mountain is one of the largest in Scotland but is better known for its hollow insides.

These ruins of a medieval church are full of architectural mysteries.

Nestled atop a wind-swept crag in the Scottish Highlands is a lonely memorial to a beloved hiker.

This tiny island is home to the world's largest colony of Northern gannets.

This 1,300-year-old marker is one of the finest and most complete early Christian crosses in Scotland.

This castle resides in a valley known for immense bloodshed during the Middle Ages.

This hill nestled in the Scottish lowlands was a ritual site for over 4,000 years.

This Shetland Islands bus shelter may be small, but it squeezes in a couch, a desk, some art, and even an old telly.

An ancient stone wall formed by lava that was a frequent stop during funeral marches.

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

This abandoned oil depot produces world's longest echo in a manmade structure.

These skilfully executed, poignant works of art dot a verdant Scottish dell.

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

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

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