For some its just random patterns, but upon closer look they reveal things lost to history.

This moving sculpture depicts contortionist positions based on photographs of gymnast Věra Čáslavská, who protested the Soviet invasion of Czechoslovakia.

Spitfire airplanes with butterfly wings hover over Prague’s skyline.

The ruins of a medieval bridge are visible inside a Prague Metro station.

The hidden lair of an alchemist rediscovered in a 2002 flood.

An existential riddle in the world's largest ancient castle.

The deepest sinkhole in Central Europe comes with a grisly tale and an unusual nickname: “The Stepmother Abyss.”

Hundreds of "animals" created from scrap metal, alongside a collection of other oddities.

The European Union’s tallest freestanding structure provides radio and television broadcasting to half of Latvia.

Latvia’s first skyscraper, nicknamed ‘Stalin’s birthday cake.’

A subtle memorial marks where a human chain protested Soviet control in 1989.

Medical museum that houses most notably the taxidermied remains of Vladimir Demikhov's famous two-headed dog experiment.

A former graveyard for Riga’s elite is now a large park with elegant monuments.

A monumental golden thumb rises as an iconic homage to Nouveau Réalisme, bold in scale and unapologetic in spirit.

This permanent exhibition showcases the historical significance and cultivation of pineapples.

A radio tower with something unusual between its legs.

Terrifying derelict military hospital once housed a recuperating Hitler.

A collection of art from Bulgaria's time as a communist state.

An interactive museum-like experience takes visitors back to 1980s Communist Bulgaria.

Underneath this Byzantinian church lies a necropolis filled with ancient tombs and the ruins of previous churches.

A flamboyant five-story building in Bulgaria resembles a crawling snail.

"Unity, Creativity, Beauty."