This sculpture commemorates Edinburgh's sister city and their respective celebrity dogs.

A century-old shot ball factory tower is open to the public once a year.

This little museum is making sure that the art and history of the graffiti sticker is not scraped from history.

The largest free-standing aquarium in the world resides in a hotel lobby in Berlin.

A fascinating insight into daily life in the Eastern Bloc.

Residents of Berlin take their coffee and cake in one of the city’s most restful spaces: a cemetery.

Spain's largest bullring offers a unique glimpse at architecture and history.

The final resting place of the great navigator, or maybe his brother.

Holding the current title of "biggest chair in the world," it stands with little fanfare in Lucena, Spain.

One of downtown Berlin's last reminders of its Communist past.

The last remnants of a massive medieval wall that once encompassed the city of Berlin.

This water-tower-turned-high-end-apartment building was once the site of an early Nazi concentration camp.

A slice of central Asia in the middle of Berlin.

This futuristic German spa allows visitors to float in a pool of salt water while zoning out to underwater techno.

For patriotic Russians, this memorial honoring the Soviet soldiers who died liberating Berlin in 1945 is the most sacred location outside of Russia.

Home to 10,000 medical specimens including the remains of Rudolf Virchow's extensive collection of pathological specimens.

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

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

A narrow passage next to a cafe leads to a courtyard exploding with murals, tags, and paste-ups.

The first Catholic church in Singapore is a Neo-Gothic colossus with a rich architectural history.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

Started as a kitchen garden, now the second largest botanical garden in the world.

In the fictional world of Kcymaerxthaere, celestial wonders marked a portal to a powerful route of travel at this site in Madrid, Spain.