Martin Bricelj Baraga's monolithic sculpture measures the blueness of the sky, and changes color to match it.

A small island dotted with old, historic Finnish buildings.

An abstract monument to a symphonic composer.

This endearingly discomfited urinating statue commemorates the sneaky pees had by us all.

A lovingly curated curio shop in which the taxidermy wear newspaper party hats, and peanut shells are spread across every surface.

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

This once-derelict building is now one of the most beautiful bookstores in the world.

This solitary monastery may hold the remains of Vlad the Impaler (but probably not).

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

A striking symbol of the Bulgarian capital.

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

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

Different sections of the Zemun Fortress were built in the 14th and 15th century as a response to the advance of the Ottoman Empire.

This art installation pays homage to the famed stones of European lore.

A small memorial to a deadly night in Serbia that shook the world before it was swept under the rug.

This ice cream parlor serves scoops of flavors like rakia, medlar, and poppy seed.

Tucked in an urban forest, this restaurant specializes in homemade, healing rakijas.

A Serbian church lit by chandeliers made of weapons.

In between two buildings in Ljubljana, medieval tunnel to nowhere.

A public work of art that also provides some relief from the summer heat.

This scale model of our solar system hid in plain sight for years before a physics team sought out all the planets.

A peculiar museum that includes many drunken tales, a drunk driving simulator, and much more.

This only museum in the world dedicated solely to mushrooms.

Where the lovelorn find a home for their sentimental keepsakes.