This communist behemoth is the heaviest building in the world and a legacy of a brutal regime.

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

Near Belgrade, an ancient-looking sarcophagus serves as a World War I monument.

Imperial palace of Emperor Galerius, the Emperor behind the worst Christian persecutions during the Roman Empire.

An idyllic traditional timber village on a picturesque hill was built for a film.

A museum dedicated to the former country.

An ode to a soldier who came to town, fell in love, then began making his own sparkling wine.

After 11 years of reconstruction work, Slovakia's finest hilltop chapel complex is finally reopen to the public.

Thousands of slain Soviet soldiers are buried within the shadow of this enormous obelisk.

This Slovak bridge is known both for its connection to a national uprising and its UFO-shaped eatery.

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

Swedish skyscraper with a 90° twist.

The second-highest train station in Europe.

This work of engineering is imbued with elegance and ingeniousness.

This statue pays tribute to the iconic musician in the place where he recorded his final studio album.

One of the highest emergency huts in the world has been waiting almost a century to give imperiled climbers a place to lie down.

The oldest surviving wooden bridge over Rhine lets travelers cross easily from Switzerland to Liechtensten.

This simple apartment may have inspired some of the most important theories in the history of science.

Swiss vineyards in a UNESCO heritage site.

A historic observatory precariously perched at the "Top of Europe."

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

This is not only one of the oldest collections in Europe, but also possibly the most beautiful.

Built in the Soviet era, this cableway system still runs gondolas from Odessa down to Otrada Beach.

The medieval prince founded the first library in Ukraine at Saint Sophia's Cathedral where he was interred.