Landmark

Željava Air Base

Ballota · Wikimedia Commons · CC BY-SA 4.0

Some booking links are affiliate links. If you book through them, we may earn a small commission at no extra cost to you. We never let this influence which places we recommend.

Željava Air Base, also known as Objekat 505, is a colossal underground military airport carved into a mountain near Bihać. Constructed during the Cold War for the Yugoslav Air Force, it features miles of tunnels, hangars, and runways designed to withstand nuclear attack. Today, it stands abandoned, offering a haunting glimpse into military history. Visitors can explore the dark, cavernous spaces, graffiti-covered walls, and remnants of aircraft, making it a unique destination for urban explorers and history enthusiasts.

Don't miss

Explore the vast underground tunnels and hangars.
See remnants of Cold War-era military infrastructure.
Observe graffiti and decay in this eerie abandoned site.

Getting there

Open in Google Maps Get directions

More attractions in Bihac

Landmark

Bihać Golubić Airport

A small regional airport serving as the gateway to the Una region, offering scenic flights and access to nearby natural attractions.

Religious site

Fethija Mosque (Bihać)

16th-century mosque converted from a Catholic church, featuring Gothic and Islamic architectural elements.

Sight

Bihać

Historic city on the Una River, gateway to Una National Park, with Ottoman architecture and lively waterfront.

Planning your trip to Bihac? See where to eat, more attractions, or build a Bihac itinerary.