Apartment complexes built into huge repurposed natural gas tanks.

After the famous composer died in Paris, his sister snuck his heart out of the country to honor his wish that it be buried in their native country.

In the summer, the area around this sculpture transforms into a vibrant concert venue.

The giant statue and its model solar system honor the native Pole who declared that the Earth revolves around the Sun.

One of the most iconic neon ads of former East Germany.

This incredible stone temple is a monument to death, victory, and fantasy architecture.

One of the oldest bridges in Norwich was used during the English witch trials and is said to be haunted.

A 16th-century footpath said to be haunted by a young girl that died trapped within its misshapen old house.

This imprint of an old computer keyboard has a unique backstory.

Be on the lookout for the symbolic insect all over the city.

The name of this suspended sculpture is Latin for "high horse," which is exactly what it is.

This neon sign is an homage to an Alfred Hitchcock film.

An angelic, yet demonic-looking figurine presides over one of Glasgow's most ancient streets.

The world's oldest surviving music hall was also once a freakshow.

This sculpture of Edward of Woodstock is surrounded by eight Victorian lamp bearers.

This Scottish museum is the only one in the world to focus not on one religion but all of them.

The oldest house in Glasgow is now a museum dedicated to the city's medieval history.

This ancient holy well is older than much of the city that surrounds it.

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

This former burial ground, built atop discarded ballast from cargo ships, is now a public park.

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

Near the former site of numerous witch burnings, this lavish Edinburgh mainstay pays homage to Scotland's brutal history.

This cannonball embedded in the side of an Edinburgh house once served a surprisingly pedestrian purpose.

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