This exquisite, alienesque piece of Soviet architecture is being threatened by modern shopping malls.

This oddly shaped building is a surprising Soviet-era crematorium.

Monumental sculptures guard many of the graves, transforming this necropolis into an open-air fine art museum.

This Ukranian fortress is one of the best-preserved medieval castles in Europe.

A quirky collection flush with information on commode culture from ancient times to modern day.

This 1000 year old relic-filled cave monastery and UNESCO World Heritage Site also hosts an amazing micro-miniature museum.

A Kyiv-based repository for all manners of discarded curiosities.

This Ukraine alleyway has become its own little island of forgotten things.

The deepest metro station in the world.

One of the largest museums in Ukraine remembers the story of the German-Soviet War in iconic, brutalist style.

340-foot statue built to honour the Heroes of the Soviet Union.

This unassuming museum's slogan translates to “there is a limit of sadness, anxiety has no limits."

The final resting place of the "father of special effects."

Collection of antique taxidermy and natural specimens, near one of Paris's oldest flea markets.

A magical, macabre wax museum, beloved by locals, uses real artifacts to depict an assassination from the French Revolution.

A museum which takes visitors to the côté obscure of Paris.

Noirish green neon marks the location of one of the oldest private detective agencies in France.

The former home of France's controversial pop maestro is almost completely covered in ever-changing tributes and graffiti.

A modern-day Lascaux cave underneath Paris.

A unrivaled and rather horrifying collection of wax dermatological models.

This former “ante-chamber to the guillotine” has been refurbished to illustrate the brutal history of French justice.

A Parisian exterminator's shop whose storefront displays stuffed rats hanging from traps.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

Behind the pink curtain, Au Bonheur du Jour, an art gallery of erotic archives.