Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

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

Regency-era excess on the English Coast.

The bones of two medieval royal lions were discovered at the historic fortress.

This bewitching Babylonian goddess haunts a hallway of the British Museum.

These wire animal sculptures commemorate the exotic inhabitants that once called the Tower of London home.

An architectural oddity hides in plain sight on this iconic London bridge.

This long-hidden space above Westminster Abbey now displays the battle gear of the legendary King Henry V.

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

Hear the quietest sound from across the dome.

One part local history, 99 parts gruesome haunted house.

Eighty million natural history specimens call this gargantuan museum home.

Monumental sculptures guard many of the graves, transforming this necropolis into an open-air fine art museum.

Two large posteriors in one giant statue.

It's believed these prehistoric individuals were the victims of cannibalism.

The much-loved protagonist of famed Argentinian comics can be found sitting on a park bench.

This Bronze Age man spent millennia buried in a mine, giving his bones an eerie hue.

The atmospheric ruins of a historic church can be found on a hill above the city of Oviedo.

This sweet-toothed bear searching for snacks has been a symbol of Madrid for decades.

A lush indoor jungle fills this bustling Madrid transportation hub.

An ancient Egyptian temple in the middle of Madrid, Spain.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.