The quiet field that inspired one of the most famous songs of all time.

Follow the original medieval paths that wind through this intriguing section of the city.

This iconic 1,000-year-old medieval castle is a favorite of the film industry, most notably as the location for Hogwarts in Harry Potter.

A fantastic castle rumored to be the birthplace of King Arthur.

The sign at the garden gate reads: “These Plants Can Kill.”

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

This spa park features an open-air museum of abstract marble sculptures.

Operating continuously since 1903, this "milestone" facility transformed the regional economy.

This symbol of Yugoslav liberation decorated with 620 carved heads of mythical creatures is now a forlorn relic of another time.

A sinuous path among steep cliffs creates a stunning sight in southwestern Serbia.

At this archaeological site, visitors can explore the ruins of the capital of the former Roman province of Moesia.

When a medieval fire claimed the original St. Stephen’s Cathedral, it sparked a pattern of unquenchable organ building.

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

Legions of Roman soldiers bathed in this ancient spa complex under a Budapest transit station.

A triumphant marble and bronze fountain depicting a 15th-century Hungarian king and his hunting party.

Tucked away near more famous landmarks lies a statue meant to symbolize the confluence and continuing development of human culture.

A Trabant car, a kangaroo statue, and a plethora of plants take over this abandoned-factory-turned-bar.

Once the home of a hermetic monk, this cave now houses a small church.

This 14th century castle withstood years of battle but is now sliding off the hills into the Danube.

A Hungarian pharmacy museum with a box full of mummy powder.

A series of caves under Castle Hill that once held the prisoner Vlad Tepes, better known as Count Dracula.

Mummified monks and the accidentally interred, in a 17th-century crypt.

A measuring mishap led to these artificial stone ladies losing their stomachs.

Centuries of human activity have forged an eerie landscape of ruins and craters on an exposed and windswept hilltop.