These public toilets were used as a dead drop by pro-Soviet spies to trade British military secrets during the Cold War.

One of the largest private collections of fossils in the world.

These thermal springs were once popular with residents of a nearby Roman colony.

Dedicated to one of the author's most iconic works.

This giant work of Cappadocian pottery includes a memorial for the artisan who created it.

The only female equestrian statue in Washington, D.C. is a 15th-century French heroine.

The accidental discovery of this gilt bronze head led archaeologists to find the Roman Baths in the city of Bath

The final resting place of "Mother Kofi," a Black minister who was assassinated in the middle of a sermon.

The first statue to be added to Saint Peter's Square in over 350 years is an ode to migrants and refugees around the world.

With a bundle of matches in one hand and a mobile phone in the other, this sculpture is a modern take on Hans Christian Andersen's poignant fairy tale.

A once-abandoned school building converted into a fantastical multi-level art installation and haven for Appalachian artists.

Look up from the busy streets to discover how time is kept!

Twenty carved heads in Glasgow take a comical, modern twist to the medieval apotropaic, avenger of evil.

The largest and best-preserved rotunda in Prague.

A mysterious suspended hand greets unsuspecting visitors at the Tower of London.

A historic and beautiful Art Nouveau chamber in a historic railway station.

This shrine commemorates the site of the first known Catholic mass in the United States.

This 19th-century prison once held Irish revolutionary Constance Markievicz, writer Frank O’Connor, and a nine-year-old pickpocket.

An ancient relic in Edinburgh that is around 4,000 years old.

A freedman baker’s lavish tomb has a relief showing various stages of Roman bread making.

This small bronze pyramid marks the center of Belgrade, but some say it is a Masonic symbol.

Across from a hotel parking lot, a Confederate spy rests under a large tombstone with her Union Veteran husband behind a copse of trees in a small, well-maintained cemetery.

One of London’s rare Tudor-era buildings is a fate-defying gatehouse for a church.

Positioned outside a church, this sinister folkloric figure incited protests in both 1902 and 2002.