The world's largest wooden structure.

The one-time stronghold of the noble Douglas family, now home to ghost sightings and nesting birds.

Hidden on a cobblestone street in Glasgow, a Czech Cajovna-inspired teahouse serves as a hangout for Bohemians.

This museum offers a glimpse into early 20th-century Glasgow life.

The Guinness Record holder as the "tallest cinema in the world" is a building with screens in almost every one of its 12 floors

One of the first monuments dedicated to the accomplishments of the great Vice Admiral, Horatio Nelson.

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

This stately monument has been wearing a traffic cone hat for decades much to the delight of the locals.

Glasgow's memorial to the International Brigade volunteers from Great Britain who fought and died in the Spanish Civil War.

This Georgian mansion blends historical significance with an impressive art collection within picturesque surroundings.

The colorful stairs are made with marble from the world's major quarries.

This sculpture of disembodied body parts forms a poignant memory of the horrors of World War II.

Some cheeky plantings brighten an old slipway on Scotland's Firth of Forth.

The only fixed chain and post trail in Scotland snakes its way along the base of a towering seaside cliff.

The ruins of a small church belonging to a powerful Scottish family still hold the remains of its patriarch.

This stone was once used by druids to determine a person's innocence or guilt.

One of the few remaining ancient aqueducts described by Frontinus as 'the most solemn testimony of the Empire.'

Originally planted by the ancient Carthaginians, this sprawling palm grove is one of the largest in the world.

The abandoned club hides in the hills of Ibiza.

Originally slated to become a luxurious resort, this structure is now a graffiti haunt reclaimed by nature.

An optical Illusion once believed to be an electrical phenomenon.

These semi-natural waterfalls hint at the park's Victorian-era industrial past.

A bizarre stone beast lurks on the beach of a popular tourist island.

This collection of Neolithic monuments make up one of The U.K.'s richest archeological landscapes.