Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

Edinburgh's oldest statue hides within a parking lot behind the city's iconic cathedral.

Touching this 18th-century Scottish philosopher’s toe allegedly conjures good fortune.

Overlooked by many, the two famous Scottish warriors guard the main gate of Edinburgh Castle.

The ruins of this gorgeous clifftop castle look like something from a fantasy novel.

The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

These fantastically named natural pools look like something out of a Scottish myth.

Men in rubber-soled boots serve as your "brakes" on this toboggan ride Hemingway described as "exhilarating."

A lush oasis full of vibrant plants and striking geometric displays.

A shrine-like museum entirely dedicated to soccer superstar Cristiano Ronaldo.

A micronation on an islet along the coast of a Portuguese island.

Hundreds of thousands of concrete bunkers crowd Albania long after the fall of Communism.

A climbing route in the mountains of Italy’s Dolomites, built for soldiers during World War I.

This real life asylum of horrors is now an abandoned ruin that hides the unbreakable code to one patient's insanity.

Ruins of a German Castle on top of a towering stone pillar.

An engineering wonder at Pillnitz Castle protects a precious 230-year-old flowering shrub.

This Dresden church was purposely rebuilt Protestant after being demolished in World War II.

This irregularly shaped sea fortress has defended not one but three different sovereign states.

This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.

The world’s largest truck stop includes a barber shop, chiropractor, and a huge museum with antique trucks.

Few other hotels can rival the grandeur of the Castle in the Rockies.

A series of tiny artificial islands rich with produce bob atop the surface of the lake.

A vast, otherworldly collection of Buddhist stupas.

The oldest teak bridge in the world is made from the remains of a royal palace.