A series of metal trumpets in the heart of Ruma represents the seven Vojvodina People's Liberation Brigades.

Designed as a reminder of one of the darkest moments in Austrian history.

This feat of Brutalist architecture is also known as the Three Sisters.

This art installation pays homage to the famed stones of European lore.

Memorial to the victims of the Holocaust in Serbia.

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

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

One of Serbia's oldest luxury hotels and a nostalgic echo to Yugoslavia in the state's former capital.

Two buildings named after their windows that make it look like a sea of television sets plastered to a wall.

Considered an architectural abomination by some, this metal-clad building is known as 'little red riding hood' by locals.

Legends surround an ancient tree trunk riddled with nails for good luck.

Vienna's diversity-themed traffic lights were inspired by the Eurovision Song Contest.

On a winding Vienna side street, one museum has turned their windows into a monument to history’s peace-minded heroes.

A mechanical clock built in 1914, with a rotation of 12 historical figures on its face.

In the middle of a Vienna square, Roman ruins dating back some 2,000 years are on display.

The first modernist church in Europe.

Apartment complexes built into huge repurposed natural gas tanks.

The beautiful baroque library of the Hapsburg empire.

Dine amidst exotic plants at this former royal greenhouse.

Baroque celebration of the end of the Great Plague of Vienna.

A magnificent collection of imperial armor and weaponry.

The Habsburgs' royal collections of art and wonders.

This series of Baroque passageways in Vienna's cultural center mix old architecture with modern art.

Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.