Places hanssterkendries Wants to Go

Featuring the last fully walkable parapet walkway in Europe.

This 13th century Gothic brick castle is the largest in the world by surface area.

A century-old stone hermitage overlooks this remote pass in the Hoggar mountains, surrounded by a landscape of eroded volcanic cores.

These natural cliffs look like they are a part of an old castle complex.

Deep below the dry landscape of Bahia, a cave with intense blue water to float in.

A striped 12th-century basilica sits in the countryside of Sardinia.

This seaside Italian village doesn't just look Escher-esque, it actually inspired the mind-bending artist.

In the early 1900s, hundreds of Black Americans found opportunity in this now-abandoned rural community.

You can only access this hermitage by crawling under a ledge suspended above an overhang.

The largest cave in Northern Europe.

Aged nearly 1,700 years, the world's oldest bottle of wine is probably still drinkable.

Thanks to a clever legal loophole, this mountainside wine shop sells a hybrid cuvée that's been outlawed for nearly a century.

On rare days, this abandoned castle's gatekeepers open its doors, revealing the eye-popping splendor hidden inside.

This charming cobbled backstreet is the most Instagramable street in Paris, much to the residents' annoyance.

The only way to visit this old resort hotel is with scuba gear.

This massive library holds what was once the largest book collection in the world.

A top-secret bunker now turned museum, is an eerie look at what life would have looked like in the event of nuclear war.

This 8th-century Bavarian monastery is home to an exquisite Baroque-era library.

An abandoned swimming pool decays on the outskirts of Berlin.

To the great disappointment of doomsdayers, this codex merely contains records of the Moon and Venus.

Berlin's old airport.

A state-of-the-art medical facility from the Imperial era is now a derelict ruin.

Two planes stand abandoned after the closure of an aircraft-themed restaurant.

Built to be the ideal penitentiary, this abandoned panopticon saw several revolts and even a prisoners' coup.