Scattered throughout London are ancient remnants of the city's former bounding wall.

This fairy tale forest hides scenes from some of the more obscure and bizarre Western nursery stories.

A miniature city, once ruled by the Queen of the Netherlands.

The largest 19th century panorama in the world still in-situ.

How one woman gave orphaned sculptures a new home in the city of Utrecht.

The world's tallest church tower reveals a spectacular view to anyone up to the task of climbing the daunting staircase.

The elegant manor house where Kaiser Wilhelm II lived in exile after World War I.

An ancient Egyptian obelisk is now used to commemorate fallen Italian soldiers.

Its interior is adorned with some of the best examples of early Christian mosaics.

A thought-provoking outdoor art installation sits in the seat of German law.

The most impressive of Basel's three remaining city gates.

This artistic fountain display pays homage to this area's theatrical history.

Memorials at a Florence railway station remember the citizens who were deported from Italy and sent to extermination camps.

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

Legend says this mysterious stone head belongs to a woman who was petrified by an alchemist.

The famous sculptor left his mark on this Italian wall in an internationally protected example of street art.

Legend has it this fountain built to symbolize the Pope’s power hides a strange secret concerning Neptune's manliness.

Over 100 towers were built in Bologna during the Middle Ages, but only 22 survive.

Psychoanalyst Carl Jung reported a paranormal experience after visiting this mosaic-lined Roman baptistry.

An incredible mosaic-lined monument said to have held the remains of an ancient Roman empress.

This 6th-century church has the largest and best-preserved collection of Byzantine mosaics outside Constantinople.

Italian poet Dante Alighieri is entombed in this small mausoleum in Ravenna, and his hometown of Florence has never been too happy about it.

This private skyway is filled with art and was expanded explicitly so that Hitler could appreciate a river.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.