This dazzling Art Nouveau mansion is now home to the Modern Art Gallery Subotica.

Housed in a 1912 architectural masterpiece, this outlet of the Golden Arches is a real beauty.

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

A tribute to a man who defied the Nazis until his last breath.

A grand Yugoslav memorial to the group of partisans who fought and died resisting western Serbia’s Nazi occupation.

For over 40 years, this quaint little house has teetered on a rock in the middle of a river.

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

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

Through the colossal entrance to this cave you'll find limestone tubs and an underground waterfall.

A pair of connected skyscrapers form this symbolic gateway.

A Serbian church lit by chandeliers made of weapons.

Destroyed Serbian army headquarters sits half crumbled in a largely revitalized Belgrade.

A misnamed well, with a deep dark past.

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

Structure built from the skulls of vanquished foes.

A spherical "micro-nation" in the heart of Vienna.

This former insane asylum now holds a pathological anatomy museum.

This living legend of maritime history is enjoying a second life.

The mysterious empty cupola behind the monumental arch points to an ancient prophecy of Delhi.

An ancient iron pillar in Delhi that seems to be rustproof.

A blooming house of worship for the masses.

A complex of six forts embedded in the Rajasthan hills.

A former bastion of Rajput chivalry, this massive hill fort is the site of legend and tragedy.

A Zoroastrian funerary tower where excarnation rituals are carried out is threatened by the area's dwindling vulture population.