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

This statue pays tribute to the iconic musician in the place where he recorded his final studio album.

This beautiful 19th-century temple stands atop the ruins of its predecessor.

The old observatory in Copenhagen has a spiral corridor used as a racetrack.

Step back in time and witness the fall of Constantinople.

The most metal church of all time was built in record time because of an international, pious pissing contest.

Model Trains and Much More in Hamburg.

A fountain standing as a testament to a doomed alliance.

Taking the subway here means doing so over a bridge located in the middle of an estuary.

Nikola Tesla's ashes are held in a golden sphere, surrounded by his works.

Go surfing on this urban wave, "hacked" by local surfers.

This futuristic German television spire is actually the world's largest digital clock.

A gorgeous, Gaudí-esque stairway constructed in the city of Istanbul by a prominent Jewish family.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

This exclusive resort has completely covered a tiny Balkan island in a 5-star warren of guest rooms.

The once highest point in China blends symbolic design with a kick of adrenaline.

This psychedelic tourist trap is a leisurely descent into madness.

A 98-room castle in the middle of Toronto that bankrupted a 19th century electricity multimillionaire.

A collection of more than 12,000 shoes, displayed in a building shaped like a shoebox.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

The Incredible Hulk, Yoda, Mulder and Scully, and many many others watch over the mean streets of Toronto.

Museum dedicated to the terror regimes of Hungary.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

This sweet-toothed bear searching for snacks has been a symbol of Madrid for decades.