This late-brutalist masterpiece everyone forgot about was originally created to get the proletariat jazzed about the arts.

CERN's beautiful, bending sculpture is a tribute to the spread of knowledge.

A surreal pile of colorful junk fills a small yard in an otherwise gray neighborhood.

This irregularly shaped sea fortress has defended not one but three different sovereign states.

An abandoned textile factory on the "island of crows" was home to Estonia's first workers' strike.

This shuttered power plant is now Turkey's first industrial archaeology museum.

This small museum is basically a time capsule of daily life in the Soviet Union.

One of the world's tallest statues is also one of its most hated.

A former military outpost of Ivan the Terrible, the 16th-century church contains some of the rarest examples of Eastern Orthodox mural paintings.

Russia's own leaning tower was built on a tragic historical fable.

Replica of mosque destroyed by Russia in the 16th century.

This nostalgic Russian museum is full of USSR cultural artifacts from the 1970s and 80s.

This Russian religious complex is a Frankenstein's chapel that includes influence from almost all the major faiths.

Hundreds of unusual wheel crosses poke above the earth in this small Estonian cemetery.

A wooden statue of an Estonian pagan god and King of the Setos stands atop a sacred hill.

An army of sleeping knights sculpted by a self-taught local artist beautifully depict an old Czech legend.

The ornate miniature mansions were built for Istanbul's feathered residents.

Now abandoned, the world's first torpedo factory is crumbling into the sea.

Legend says lovers who hold hands while venturing along this stone jetty and kiss at the end will remain together forever.

A set of 27 bamboo tubes creates an eerie soundscape that changes with the wind.

Large miniature theme park with 100-plus models.

Step back in time and witness the fall of Constantinople.

Turkish adventurer antiques in the heart of the Grand Bazaar.

The legendary luxury train passage is commemorated with a charming museum inside its former eastern terminus.