Places Pengwn Wants to Go

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

This massive subterranean fissure is known as the "underground Grand Canyon."

This Croatian computer club features such gaming relics as the infamous Virtual Boy and an 8-bit Pacman machine.

A whimsical bridge adorned with decorative dragons.

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

This brutalist monument is inscribed with 9921 names of Yugoslav partisans who perished during WWII.

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

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

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

Colorful concentric circles honor a small Croatian town's supposed spot at the nucleus of it all.

Physicist’s epitaph provides final confirmation to a career of turmoil.

Apartment complexes built into huge repurposed natural gas tanks.

Unlike many reclaimed, abandoned mines, this Canadian cave system is still just a dangerous maze.

This tower in a small Polish village uses the power of a sacred bell to ward off mischievous weather spirits.

A beautiful display of nearly 50 bells crafted with a unique design and distinct sound.

One of the largest barracks of the Austro-Hungarian monarchy's military is now an abandoned ruin.

This Hungarian stilt village is built in a lake that never freezes over due to the power plant that that uses it as a cooling pond.

The remains of an entire Roman city can be explored in this interactive museum.

Hungarian self-built castle.

This quaint Hungarian railway system is operated exclusively by children between the ages of 10 and 14.

Legions of Roman soldiers bathed in this ancient spa complex under a Budapest transit station.

Beautiful antiques and obscure engineering artifacts trace the evolution of phones from rare luxuries to ubiquitous.

Budapest's Communist-era statues, banished to the suburbs.

A series of caves under Castle Hill that once held the prisoner Vlad Tepes, better known as Count Dracula.