The remains of the debtor’s prison that shaped Charles Dickens’ life and writing.

Tony Blair's garden gnome and a Howitzer shell-turned-flower-pot are on display in this deconsecrated 13th-century church.

These former ticket office windows in London's underground now house pocket-size parks.

Two copies of a rejected Victorian-era lamp design still stand along the Thames River.

For more than half a century, an enormous feline has watched over this London neighborhood.

Over several decades, one of London’s most iconic city gates was dismantled, moved out of the city, and then moved back.

An oddity of a bygone era that stills functions today.

An open-air art gallery that aims to share the stories of the people who live around it.

A 14th-century Serbian Orthodox church that was once converted into a mosque under the much-disfavored Ottoman Empire.

This lonely minaret with an unusual decorative symbol is all that remains of a historic Ottoman mosque.

An unfinished Serbian Orthodox church with 1,389 golden crosses planned to represent the Battle of Kosovo.

This massive monument was unveiled the day Kosovo declared independence from Serbia.

A 11-foot former president stands on a Kosovo street that also bears his name.

A futuristic, brutalist masterpiece that is also strangely prison-like.

This hand-painted advertisement is a literal sign of encouragement, however unintentional.

Tucked away in a London Tube station, this 1920s linear clock shows the time across the world all at once.

These 19th-century gas tanks were remade into an apartment complex.

Latvia’s first skyscraper, nicknamed ‘Stalin’s birthday cake.’

A secluded art gallery hidden within the cellars beneath Tallinn’s medieval monastery.

This 16th-century cemetery became a recreational park during the Soviet occupation—today it's a little bit of both.

Thousands of graves lurk below the surface of this park.

A spectacular Petrine Baroque summer palace commissioned for Catherine I by Peter the Great.

The first monument in Estonia that was made by an Estonian sculptor.

This set of concrete chambers resonates according to different notes of octaves.