Different sections of the Zemun Fortress were built in the 14th and 15th century as a response to the advance of the Ottoman Empire.

An Art Deco Icarus statue adorns this abandoned gem of Yugoslav Modernist architecture.

Arguably Belgrade's only example of pure Art Deco architecture.

A towering spire in the fortress of Kalemegdan honors the victorious armies of Serbia during their struggles against the Ottoman Empire.

A misnamed well, with a deep dark past.

Backwards hour and minute hands and a timing mechanism that fluctuates with the temperature led to this clock tower's local nickname.

A maze of underground tunnels beneath one of the most beautiful forts in Serbia.

Also known as Uncle Karl, the beloved bronze copper keeps a watchful eye on St. Stephen’s Basilica while people rub his lucky belly.

A highly-criticized monument in Budapest has become the site of a makeshift Holocaust memorial.

From cartoon characters to tiny tanks, a guerilla sculptor's little bronze statues are hidden throughout the city of Budapest.

A statue in Budapest's Liberty Square honors the former U.S. president's efforts to end the Cold War.

This memorial to a murdered empress took 20 years to design, then spent 30 years hidden away in storage.

A sculpture of a beloved local figure, who tipped his top hat to everyone he passed on the streets of Bratislava.

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

Duluth mineral magnates built this charming art deco lodge to be their private clubhouse.

This friendly fellow was built to honor an advancement in mineral processing.

A hands-off space for graffiti artists to hone and display their skills.

Touching this 18th-century Scottish philosopher’s toe allegedly conjures good fortune.

The 16th-century church has the only stained glass windows that survived the Scottish Reformation intact.

The most loyal of little dogs, or a Victorian era publicity stunt?

The location of a citizen uprising that led to a gruesome act of mob justice.

This was once a hall in which a 16th-century royal banquet was hosted by King James VI of Scotland.

The last Victorian market in Belfast.

These engineering masterpieces are a dominant feature of the Belfast skyline.