Places megankass Wants to Go

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

A tower marking the spot where Yugoslavia began its resistance against the invading Nazis stands neglected, but not quite forgotten.

A wunderkammer of gold and silver reliquaries and ancient saintly bones.

Longest fortress system anywhere in Europe.

Croatia's towering concrete blossom grows from the site of a World War II concentration camp.

This picturesque medieval monastery guards a small trove of historic treasures.

Gargoyle head that brings good luck.

This huge metal monument is slowly being stripped to its concrete skeleton.

The complex has been abandoned since the Croatian War of Independence, barring a stint as a set for 'Game of Thrones.'

The remains of a sunken military ship wreck visible through clear water.

Legend has it fairies gathered at the site of this medieval castle.

Yugoslavia's biggest underground airport lies in ruins.

Large, airy hallways hide within an impenetrable fortress that beckons urban explorers.

This stunning, out-of-the-way Croatian monument commemorates a community's uprising against occupying fascist forces.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

An ethereal glowing blue ocean cave in Croatia.

This Romanian village may have been drowned, but it is long from forgotten.

One of the most controversial statues in Romania is an emperor with no clothes.

Home of the first female Hungarian poet, where her secret writing lay hidden for over a century.

This hauntingly beautiful cemetery outside a medieval citadel is full of winding paths and ivy-covered graves.

The ancient Greek Titan guards this massive dam holding a lightning bolt to symbolize electricity.

Nine centuries-old fortresses guard the walls of this medieval Romanian city.

A Romanian church built from one single oak.

Check out engineering marvels of the past at this unintentionally retrofuturist museum.