Graffiti from the 16th and 17th centuries cover the walls of this part of the Tower of London.

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

There's an exclusive Beefeaters pub hidden in the Tower of London.

Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.

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

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

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

The 2,000-year-old beam is tucked within the pedestrian entrance to the old London Bridge.

The current seat of the Parliament of Andalusia was once the epicenter of the Great Plague of Seville.

This 17th-century pub once had a hole in its wall so the neighboring blacksmith could easily access beer.

This beautifully situated lakeside Roman settlement was likely built during the reign of the Emperor Hadrian.

A typographic tribute to the many comedic greats who make Great Britain laugh.

This striking monument pays tribute to those who died working the coal pits from the town of Cambuslang.

This replica medieval European village in the Dominican Republic was built by a Hollywood set designer.

Millions of glowing microscopic organisms light up the waters of this luminous lagoon.

A huge teapot illuminates a home for the elderly.

A dramatic art installation features a BMW flying out of a building in Rotterdam.

This small museum located under the famous cube houses, is home to some 30,000 chess pieces.

These slanted cubic abodes are a creative if odd solution to a zoning pickle.

Inside this metro station is a section of the city's former medieval fortification.

Old ships and machinery fill a historic harbor in the city that's home to Europe's largest port.

This charming pup is meant to celebrate the youth and stubbornness of the city's students.

This hotel was once home to a steamliner company and became the final rest stop for Europeans heading to the New World.

A condensed piece of China floating in a Dutch harbor.