Kings Cross Station pays tribute to its role in Britain's best-selling book series.

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

Breathtaking and huge 430 year old maps of Italy.

The fragmented remains of a massive public bath connected to the city's water supply.

A display of torture devices used in the Spanish Inquisition and other scourges of medieval Europe.

A lush indoor jungle fills this bustling Madrid transportation hub.

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

The oldest restaurant in the world is this old-world Spanish eatery, still known for its suckling pig.

An ancient and majestic fortress that played an integral role in Portugal's road to independence.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

Horse cemetery on the grounds of Blarney Castle.

This ancient Irish religious site is covered in ancient carvings, many of which have barely aged.

The ancient tomb acts as a calendar that keeps perfect time.

This Neolithic passage tomb forms part of a World Heritage Site.

The modern birthplace of Irish freedom.

One of the oldest family businesses in Reykjavík serves lamb-based hot dogs.

This stunning concert hall has become a symbol of Iceland's national recovery.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

Medicinal spa created with the discharge from a geothermal energy plant.

Unconventional site where the tracks of Zurich tramcars intersect.

The bears of Bern have been a city highlight for over 500 years.