The farthest northwesterly point of the British mainland is one of the most remote places in the Scottish Highlands.

Soviet intelligence had a keen interest in the Cold War linguistic school at this old Scottish airfield.

These ancient symbols freckling a Scottish cliff remained hidden for centuries.

This modern labyrinth lies in the shadow of a ruined medieval castle.

An optical Illusion once believed to be an electrical phenomenon.

Legend says this cave housed a 16th-century cannibal and his family of 48.

Some believe this abandoned Brutalist masterpiece inspired George Lucas's Sandcrawler.

The largest and best-preserved Roman amphitheater in Africa was designed to seat 35,000 people.

Revel in the Victorian splendor of the world's oldest eating establishment inside a museum.

The world's shortest funicular ferries beachgoers a whopping 128 feet from clifftop to shore.

The unexpectedly beloved remnants of a controversial thermal power plant.

Holy Grotto of Montserrat Monastery holds one of Europe's mysterious black Madonnas.

The "Bridge Over the Atlantic" lets you cross the waterway in mere seconds.

This opulent 16th-century Maharaja’s palace is a unique mix of Hindu and Muslim designs.

This deserted palace is one of the finest examples of Indo-Islamic architecture in India.

These medieval funerary monuments are now home to a colony of critically endangered vultures.

This 16th-century mosque is the hallmark of the African architectural legacy in India.

The most gigantic, swoony, intimidating trio of fingers in all of antiquity.

This exceptionally well-preserved ancient marvel also houses a small museum dedicated to Jordanian folk tradition.

An oasis of shade and color amidst the bustle of the old city.

This medieval tower is all that remains of the castle where Joan of Arc was held before being burned at the stake.

Once the largest unsupported dome in the world, beating out the Pantheon and St Peters in Rome.

This landmark Victorian folly rewards visitors with spectacular views over the Peak District.

The maze-like transportation hub contains abandoned areas, derelict stores, and a resident bat colony.