A misnamed well, with a deep dark past.

A Serbian church lit by chandeliers made of weapons.

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

This small bronze pyramid marks the center of Belgrade, but some say it is a Masonic symbol.

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

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

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

This natural spa is known for its healing properties and vibrant hue.

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

Religious perseverance and cultural coexistence manifest in an architectural gem that multiple wars couldn't topple.

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

This picturesque monastery at the base of a cliff is a peaceful oasis open to all visitors.

You've probably seen these distinctive orange-tiled columns on the big screen.

A haunting contrast of trains that both saved and took the lives of Jewish children in Nazi Germany.

This concrete residential area doubles as an open-air gallery.

The non-native bovine herd was brought in to help conserve these Berlin wetlands.

The 1936 Summer Olympics site is a crumbling remnant of sportsmanship and a history its host country would like to forget.

The reconstruction of this prominent building fulfilled a long-written command.

This charming Latvian lane doubled as Baker Street on the Soviet Union’s version of Sherlock Holmes.

This celebration of Latvia’s freedom and independence avoided demolition over half a century of Soviet occupation.

A preposterously luxurious hotel with gold-plated iPads, Rolls Royce chauffeurs, and a staff that trains by watching "Downton Abbey."

This indoor ski resort has a mountain contained inside a mall.

The sanctuary holds what was once believed to be the saint's incorruptible tongue.

Folklore says this medieval fortress was plopped atop a portal to hell to trap the demons below.