In one of the world's smallest countries, a royal's personal winery is open to the public.

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

A tower-like theater in the Swiss Alps built to withstand the high winds and avalanches of the mountain pass.

Old batteries and frog skeletons reside in this lakeside monument to Alessandro Volta.

This trail was once used to smuggle cigarettes, sugar, and other black market goods between Italy and Switzerland.

Artists made this mosque into a marvel of Ottoman baroque architecture.

As of 2022, the 124 rooms of Kosovo ski resort remain empty.

The abandoned "Ghost Mansion" was left to decay in the mountains of Northern Italy.

An unusual resting place built into the hill with an amazing view of Lake Como.

These stairs feature the names of Zemun's most famous faces.

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

Legend says the only thing buried within this magnificent tomb was a dog.

A macabre anatomy museum tucked within an old Italian hospital.

A stately castle in the northern Italian countryside has been restored after years of neglect.

Climb into Albania's communist history while enjoying a spectacular ocean view.

A dilapidated psychiatric facility on the outskirts of Milan where electroconvulsive therapy was developed and Napoleon once lived.

It's believed human settlements from the Palaeolithic Age were established not far from this canyon.

A historic structure that once housed pigeons used by farmers to help fertilize farmland.

An agreement meant to honor the Duke of Buckingham led to this unusually-named passageway near Charing Cross.

A mosaic monument that commemorates the historical struggles of the people of North Macedonia.

This 15th-century Ottoman bridge was modified to keep up with the changing course of the river Erenik.

A temple dedicated to the 13th-century Alevi Turkish dervish credited with bringing Islam to the Balkans.

It's unclear what caused the fire that led to this opulent hotel's demise.

This stone figurine was made more than 6,000 years ago and depicts a female deity of the Neolithic Vinča culture.