This Slovak bridge is known both for its connection to a national uprising and its UFO-shaped eatery.

A sculpture of a beloved local figure, who tipped his top hat to everyone he passed on the streets of Bratislava.

Admire dozens of life-size animals made from old scrap metal, nuts, screws, and valves.

The ruins of a 12th-century seaside castle on the southwest coast of Scotland.

The oldest natural aquarium in the United Kingdom.

Dating back to the 500s, these stones include some of the oldest Christian memorials in Scotland.

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

Believed to be the birthplace of John Balliol.

Carved between 3500 and 1000 B.C., the distinctive carvings at this site are poorly understood.

Modern megaliths form this work of cosmic, Celtic landscape art.

This unusual sculpture is sometimes partially, sometimes fully, submerged.

A 30-acre garden inspired by the principles of modern physics.

An optical Illusion once believed to be an electrical phenomenon.

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

The ruins of this magnificent Scottish castle blend both Gothic and Renaissance architectural styles.

On a hill overlooking Loch Trool, a granite boulder marks the site where Robert the Bruce, King of Scotland, defeated an English army.

Eighteen mummies have stood guard behind the altar of this tiny church since 1833.

These medieval skyscrapers dominate the skyline of this small Tuscan town.

This elaborately decorated, fairytale-like Romanian royal palace is one of the most striking castles in Europe.

Locals believe this abandoned ruin on the outskirts of Bucharest is haunted.

The ancient Greek Titan guards this massive dam holding a lightning bolt to symbolize electricity.

The legendary cliffside castle of three-time Voivode of Wallachia, Vlad the Impaler.

The inverted pyramid design of this station stands out amid Bratislava's urban landscape.

Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.