A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

Just like in Hollywood, Madrid has also a forgotten walk of fame.

The remains of the second-oldest zoo in Europe can be seen within these library gardens.

This amazing example of Valencian Art Nouveau looks more like a cathedral than a public market.

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

A lush indoor jungle fills this bustling Madrid transportation hub.

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

This charming old building's loose connection with the Scottish Reformer is what saved it from demolition after it split apart.

Edinburgh's oldest statue hides within a parking lot behind the city's iconic cathedral.

Touching this 18th-century Scottish philosopher’s toe allegedly conjures good fortune.

A verdant 17th-century-style garden hidden along Edinburgh’s Royal Mile.

This otherwise ordinary close on the Royal Mile constituted the end of the world for Edinburgh’s poorest residents.

The most loyal of little dogs, or a Victorian era publicity stunt?

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

Protecting the dead from opportunistic body snatchers.

A sweet symbol marks the place where torturous executions were once carried out.

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

A 18th century graveyard and its astonishing cortege of macabre iconography.

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

This building has two facades of clashing architectural designs.

Founded in the 4th-century, the town of Pernik plays host to the Surva Carnival⁠—a magnificent display of masked Kukeri dancers.

Mysterious standing stone formations looks like a petrified forest.

Outstanding, eerie frescoes and decorations fill this 19th-century monastery.