The fountain marks the area where hundreds of accused witches were burned at the stake.

360° views of the city plus five floors of optical illusions and hands-on science.

This fountain was once heralded as the largest in the world.

This statue once earned the distinction as one of the "Three Major Disappointments of the World."

This house is one of the most colorful in the country, and is the last remaining example of a historic villa.

Singapore's landscaping project is home to 18 incredible Supertrees.

These slanted cubic abodes are a creative if odd solution to a zoning pickle.

The largest collection of handbags in the world, the oldest of which were used to carry Bibles, primarily by men.

Tucked in the back of a flower shop, its collection details the fascinating history of the Netherlands's iconic symbol.

This cheese shop also houses a museum devoted to Dutch dairy.

This floating sculpture of ice is a poignant reminder of nature's power.

Housing the famous Norwegian ice-defying 19th century polar exploration ship.

The design of this beautifully crafted building was inspired by Norwegian glaciers.

Across the Pacific in a raft, a museum dedicated to Thor Heyerdahl's now legendary expedition.

Home to three historic ships from the age of Vikings.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

Dine on food tied to Viking history and legend at this subterranean Stockholm spot.

It houses the remains of a 17th-century version of the Titanic.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

The original home of the Lego has a huge amusement park dedicated to the iconic plastic toy.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

A restaurant and observation deck built in a unique broadcasting antenna.

The most visited, and possibly most controversial, museum in Germany.

A century-old tradition has culminated in a small but singular collection of feline effigies.