One of the best-preserved Roman amphitheaters is still used today, but for less brutal events.

Huge winged monument in the United Kingdom.

A serene public space nestled within the remains of Glasgow’s Victorian maternity hospital

An icon of the Battle of Britain is frozen in flight in a grand Victorian museum.

Hidden on a cobblestone street in Glasgow, a Czech Cajovna-inspired teahouse serves as a hangout for Bohemians.

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

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

Climb this overlooked gem's spiral staircase and you'll be rewarded with spectacular views of Glasgow.

A scattered trail of street art adds a pop of color to the city's stark structures.

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

A six-ton wedding present for the King of the Scots.

Steadily reminding Czechia of its past.

Macabre astrological automaton clock dating to the late 1400s.

One of the famous Czech artist's lesser-known Prague installations appears to be a glowing fetus affixed to a drainpipe.

This walkway is so narrow it needs its own light to stop pedestrian traffic jams.

A steampunk-styled three-floor factory churning out art, activism, and electronic beats.

The hidden lair of an alchemist rediscovered in a 2002 flood.

This spooky statue sits outside a famous Prague theater.

A series of playful yellow penguins share a serious message about the environment.

A surreal statue honoring Prague's favorite literary son.

This bar and museum are devoted to the controversial comic book work of Kája Saudek.

An eerie, existential museum dedicated to the author of "The Metamorphosis."

What looks like a suicide in progress is actually a statue of Sigmund Freud.

The first museum in the world devoted to sexual gadgetry.