A UFO-shaped event building originally intended to be a science museum showcasing the future.

The sad remains of a monument to martial arts legend and movie star Bruce Lee—in the middle of Balkans.

Bridge that died in war and was resurected.

Longest fortress system anywhere in Europe.

A tiny church on a man-made island in the Adriatic.

These historic defenses ensured the city within would survive hundreds of years of occupations, sieges, and invasions.

This small town in the Netherlands has no roads but instead, miles of canals and over 100 bridges.

There's a mini version of Iguazu Falls hidden in the Balkans, and it's got a rope swing.

Once a popular watering hole among longshoremen and shipyard workers, this neighborhood treasure spans more than 100 years of Red Hook history.

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

Blitzkrieg bop your way through Berlin's Ramones Museum.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

Sky ships, planes, and portraits left as unique tokens of hope and thankfulness.

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

An old slave lookout in Cuba's historic sugar cane fields.

The oldest house in Manhattan is now a museum that remembers the home's sordid history of scandals, vice-presidents, and ghosts.

A discreet little stairway on St. Nicholas Avenue leads to a quaint and unexpected cobblestone street of 19th century wooden rowhouses.

A statue in the heart of Edinburgh honors a bear that served in the Polish military during World War II.

This stately monument has been wearing a traffic cone hat for decades much to the delight of the locals.

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

A student driver's nightmare.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

A museum dedicated to the history and exploration of both popular music and science fiction.

An odd little fishing town that is inundated by tourists looking to be locked up in a cage and surrounded by great white sharks, because why not?