A socialist building dedicated to teachers showcases one of the largest Soviet mosaics in the world.

The site of a concentration camp where inmates were made to take part in one of the largest counterfeiting operations in history is now hauntingly empty.

A fascinating insight into daily life in the Eastern Bloc.

With over 10,000 lights, this engineering marvel lights up the city after dark.

One of the U.K's earliest public water supplies is within the "plague village."

A public art project to commemorate a tumultuous period in Derby's history.

Inspired by a dream, a hermit carved out a home in this sandstone bank to live a life of contemplation and prayer.

An extraordinary library and archive dedicated to the history of the Arctic and Antarctic poles.

Local legend says Isaac Newton built this footbridge without any screws, bolts, or nails.

A theatre built to house the rowdy Oxford graduation ceremonies became the stage for a debate about God's existence.

The fantastic charm of England's oldest botanical garden has made it a place of writerly inspiration for centuries.

This 11th century tower is said to be the oldest building in Oxford.

A striking 500-year-old mansion provides an unexpectedly sublime home for live deer and a menagerie of exotic stuffed animals.

The oldest inn in England served brew to the crusaders.

The sanctuary seems to either float atop the water or sink into the dirt, depending on the water level.

This castle has links to Portugal’s founding and struggles for independence.

A museum in south England celebrates the amphibious vehicles that cruise on a cushion of air.

An abandoned masterpiece of Soviet Brutalist architecture.

The reconstruction of this prominent building fulfilled a long-written command.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

Switzerland's oldest public observatory is an important part of the Zurich cityscape.

Liechtenstein's royal family calls this medieval alpine castle home.

Macabre astrological automaton clock dating to the late 1400s.

This Slovakian statue of an emerging sewer worker might just be a bronze peeping tom.