Estonia's largest creative city is a vibrant bohemian hub located within a former industrial complex.

Moscow's other, lesser known kremlin is a fairytale-like cultural complex modeled after Old Russia.

Dr. Strangelove-esque tours reveal the inside a bunker once reserved for Stalin himself.

A former special storage facility for documents during the Cold War.

This ancient village and its adjoining cemetery have a beautiful history of death and remembrance.

Legends of time travel and magical woodland creatures bolster the natural charm of this verdant sanctuary in the midst of Moscow.

Abandoned castle was once a grand example of Russian privilege, built exclusively to win a frivolous bet between noblemen.

A magnificent, Disneyesque chateau built for 150 lucky kindergarteners.

This frozen-in-time summer home outside Moscow provides a look at Russian life in the 1950s.

A model village fit for an emperor.

A scale model of Russia so big visitors are offered binoculars to rent so they can see the whole thing.

Once frequented by heavyweights of the Russian arts scene, this café is stuck in the 1800s.

An art museum inside an active factory.

A dormant lightning machine equal to all the power in Russia.

A Marxist summer camp full of fantastical statues lies tucked away and forgotten in the forests of Moscow.

An unusual abandoned church damaged in World War II sits in a small village outside Moscow.

This 15th-century cave complex is one of the very few monasteries to stay open throughout World War II and the Soviet regime.

Countless stories attempt to explain Poland's mysterious J-shaped trees.

An ancient artistic garden parlor full of hidden water wonders.

Long-abandoned art nouveau baths beneath Milan's Piazza Oberdan.

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

These pools have been abandoned for over 20 years.

One of the largest caves in the world open to the public.

This basement museum explores the art and artistry of fascism.