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8 of 8 places
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Alter Elbtunnel (St.-Pauli-Elbtunnel)
Tunnel Hamburg · Hamburg · Hamburg
A 426-metre-long tiled tunnel beneath the River Elbe, built in 1911 for shipyard workers. Following 15 years of renovation, both have been open again since May 2026: the East Tunnel as part of Cycle Route 4 for cyclists and pedestrians, and the West Tunnel for pedestrians and tourists. Free of charge and the only place on this list that doesn’t require a ticket.
- Route
- 426 m
Free access for pedestrians and cyclists; motor vehicles are prohibited. The west tunnel reopened on 4 May 2026 and was officially inaugurated on 21 May 2026. hamburg-tourism.de
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Bunker St. Pauli (Flakturm IV)
Bunker Hamburg · Hamburg · Hamburg
The combat tower at Heiligengeistfeld, measuring 75 by 75 metres, was built in 1942 by 1,000 forced labourers in 300 days. The guided tour takes in the stairwell, the backup control room and the ammunition depots, and ends at the roof garden. Everything remains above ground – it is an above-ground bunker, not an underground one.
- Duration
- 90 min
- Adults
- €20.00
Public guided tours take place on the first Sunday of the month from 11.00 am to 12.30 pm; minimum group size 8; group tours by arrangement. Tickets are available online only via the Hilldegarden Association. hilldegarden.org/bunker-fuehrungen
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Bunkermuseum Hamburg
Bunker Hamburg-Hamm · Hamburg · Hamburg
A four-tube air-raid shelter dating from 1940/41, situated around five metres below ground and refurbished with reconstructed furnishings to show how 200 people used to spend their nights here. Small, run by volunteers and open only on Thursdays.
- Depth
- 5 m
- Adults
- €3.00
Thursdays only, 10 am–12 noon and 3 pm–6 pm; last admission at 5.15 pm; closed on public holidays. Guided tours lasting over an hour are available by arrangement, including in English. hh-hamm.de/home/bunkermuseum
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Energiebunker Wilhelmsburg (Flakturm VI)
Bunker Hamburg · Hamburg · Hamburg
A combat tower dating from 1943, measuring 57 by 57 metres; left in ruins for sixty years following the British demolition of its interior in 1947; today a thermal storage facility and power station. The guided tour takes you through the exhibition, the energy centre and up to the terrace at a height of 30 metres – it’s a high-rise bunker, so you go up, not down.
- Adults
- free
Public guided tours every Saturday and Sunday at 1 pm, 2 pm and 3 pm; meet in front of the coffee roastery on the 8th floor; no booking required; on 24 October 2026, tours will take place at 1 pm and 2 pm only. Exclusive guided tours on weekdays for groups of 5 or more, by booking. hamburger-energiewerke.de/ueber-uns/unser…
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Tiefbunker Steintorwall
Bunker Hamburg · Hamburg · Hamburg
Not a World War bunker, but a Cold War one: a civil defence bunker completed in 1969 beneath the main railway station, with 2,702 shelter places spread over more than 2,700 square metres – the city’s largest refurbished post-war underground bunker.
- Temperature
- 12 °C
- Duration
- 100 min
- Adults
- €12.00
Guided tours at 11.30 and 14.30; meet on the forecourt of the main railway station on the Steintorwall/Spitalerstraße side; please arrive about 10 minutes beforehand. hamburgerunterwelten.de/tiefbunker-hauptb…
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Tiefbunker Berliner Tor
Bunker Hamburg · Hamburg · Hamburg
A round bunker dating from 1940, 20 metres in diameter, with three storeys, entirely underground. Around 800 people survived here during the ‘Night of the Fiery Storm’ in 1943; between 1960 and 1963, it was converted into the Federal Republic of Germany’s first public civil defence shelter, with a capacity reduced to just 450 people.
- Duration
- 150 min
- Depth
- 10 m
- Adults
- €12.00 (concession €10.00)
Only on dates announced by the “unter hamburg” association: 24 October 2026, 27 December 2026 and 17 January 2027 (20 September and 11 October 2026 are fully booked). 15 to 18 places available; registration by email; special dates for groups can be arranged. unter-hamburg.de/rundgaenge/berliner-tor
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Kaufmann-Bunker
Bunker Hamburg · Hamburg · Hamburg
Construction began in 1940 on the command centre – partly underground – known as the Budge-Palais, built for Reich Governor Karl Kaufmann; it is the last command structure from the Nazi era in Hamburg to have been preserved almost in its original state. The University of Music and Theatre now stands above the bunker.
- Adults
- €12.00 (concession €10.00)
Only one or two tours a year; the next tour is on 9 January 2027 at 2.30 pm. Meet in the entrance hall of the University of Music and Drama; booking is essential. unter-hamburg.de/rundgaenge/kaufmann-bunker
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Tiefbunker Hachmannplatz
Bunker Hamburg · Hamburg · Hamburg
One of three bunkers surrounding the main railway station, built in 1941 for travellers and local residents and converted into a civil defence shelter for over 1,400 people between 1966 and 1969 during the construction of the underground railway. During the demolition, the furnishings were removed, but the heavy ventilation equipment remains in place.
- Adults
- €12.00 (concession €10.00)
Only on dates announced by the ‘unter hamburg’ association: in autumn 2026, on 26 September and 10 October at 2.30 pm; meeting point in front of the Schauspielhaus. Book by email; groups of up to 25–30 people can also arrange their own dates. unter-hamburg.de/rundgaenge/hachmannplatz
How this directory is made
It only lists places you can actually visit in 2026: show caves with guided tours, show mines, walk-in tunnels and bunkers. Museums without a way underground are left out, and so are sites that have closed. Prices, opening hours and temperatures come from the operators, and every entry names its source. If something could not be confirmed, it is missing rather than guessed. Place names stay in German, as they appear on signs and tickets.
What to expect underground
Underground it is the same temperature all year – between 3 and 20 °C at the places listed. Bring a jacket even in high summer, and sturdy shoes: paths are often wet and slippery. Most guided tours in Germany are in German only; many sites offer English leaflets or audio guides, so ask at the ticket desk. With a pushchair or wheelchair, use the filters above – far from every site is accessible.