Inside this building is another country within Rome, a sovereign entity without a physical territory.

The ancient heart of Tunis is an enormous maze of narrow streets and alleyways.

Perhaps the only one of its kind, the nearly-forgotten site once held mortal (and rigged) gladiatorial games between tigers and imperial war elephants.

One of three sites in England that house the National Collection of Arms and Armour.

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

Winner of the Leeds Award for Architecture and the Environment.

This sculpture celebrates a boules tournament and the link between Leeds and its twin city Lille.

There are plenty of wonderful panoramic vistas in Edinburgh, but not many are hidden smack in the middle of the Old Town.

These plaques located in a court preserve a small piece of Edinburgh's history.

The colorful stairs are made with marble from the world's major quarries.

Scotland's oldest purpose-built concert hall houses an incredible collection of ornate, centuries-old keyboards.

A building-sized painting of the renowned 19th-century American abolitionist.

This extinct volcano rises above Edinburgh and is special for its panoramic views over the city.

The tomb of one of Scotland's bloody historic villains is a magnet for bumbling desecrators.

Small sculpted heads of prominent phrenologists mark the outside of their former headquarters.

These tiny effigies are believed to represent victims of Edinburgh’s notorious Anatomy Murders.

This Roman relic was discovered in Scotland by a mudlarking ferryman.

The Scottish Reformation leader's grave was paved over and is now a parking lot.

Islanders once used this dramatic, otherworldly landscape to hide their cattle from Viking raiders.

A small island with shimmering pink sands, home to loggerhead turtles and rare plants.

The great Italian Renaissance painter was laid to rest here in the Chapel of Saint-Hubert.

The "lost friend” is the most famous of the six moai statues that were removed from Easter Island.

A cluttered and astounding collection of antiquities and curiosities.

This inn of the court provides a fascinating window into London’s legal and architectural history.