2025 - May - Hamburg - The Bunker

Since 2024, there has been a new, free viewpoint over Hamburg: The Bunker.

But why is it 'new'? After all, 'Bunker' sounds anything but modern. And indeed: The only new thing about this place is the renovation.

The so-called Flak Tower IV was built in 1942 within just 300 days using reinforced concrete – with the labor of over 1,000 forced workers. It is one of the largest bunker complexes in the world. Due to the many war-critical shipyards, Hamburg was a frequent target of allied airstrikes. Therefore, the bunker was primarily constructed for civil protection. It was designed for around 18,000 people, but at peak times up to 25,000 individuals sought refuge inside.

Like its architectural counterparts in Vienna and Berlin, the bunker was designed as a self-sufficient unit – with its own power and water supply, as well as light overpressure to withstand even gas attacks. However, the anticipated military use as an anti-aircraft base remained limited.

After World War II, the bunker was not blown up but repurposed as accommodation due to the housing shortage. Families lived here until 1972. In the 1990s, the building was transformed into a media center – including a music club that still exists today.

Since 2017, the now listed bunker has been extended by five floors and greened. But the new area was only opened in 2024. Today, it hosts restaurants, a hotel, and a publicly accessible roof terrace with panoramic views over the city. The ascent is free: 389 steps lead up via the so-called mountain path.

By the way, from up there, you not only have a great view over Hamburg, but right next door is the stadium of FC St. Pauli. With a bit of luck, you might even catch a glimpse of training or a game – from a bird's eye view.