An empty relic of the Moscow Olympics crumbles away in Estonia's capital.

A subterranean house of worship carved right out of the bedrock.

Architecturally stunning library serves as the hub of Finnish scholarly life and culture.

An alien church provides much needed silence in the midst of a Finland shopping center.

An abstract monument to a symphonic composer.

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

This insurance company building reminds customers that witches, bears, and gnomes are out there, best be insured.

An art museum inside an active factory.

This Russian museum stresses the importance of keeping clean and even holds one of Pavlov's dogs.

Perhaps the tiniest sculpture in Saint Petersburg is a little bronze finch inspired by a song.

Dark, eerie exhibits make for a surreal exploration of the subconscious.

A city block packed with whimsical sculptures that seem to be plucked from a tiled fantasy world.

Specimens collected by the author of "Lolita" and self-taught lepidopterist are exhibited in his childhood home.

Palace where the nearly un-killable Rasputin was murdered.

A 250-year-old timepiece-automaton adorned with golden mechanical birds, which still sing to this day.

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

An 18th century wonder of the world, lost in WWII, re-created at the Catherine Palace.

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

The oldest museum in Russia is home to a fascinating collection of nearly two million anthropological artifacts and anatomical curiosities.

The beloved fantasy novelist is buried near a church containing a whimsical etched glass window full of Narnia favorites.

A 26-foot shark sculpture—a statement about bombs—set off a municipal battle royale.

J.R.R Tolkien, C.S. Lewis, and other "Inklings" met at the Oxford pub to discuss the now legendary fantasy stories they were writing.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

A tongue-in-cheek arcade where the games are based on everyday life.