Attractions & museums

Bastion passages in the Tallinn Old Town

The bastion passages are part of the Kiek in de Kök Fortification Museum.

The mysterious passages in Tallinn’s earthwork fortifications were built along with the bastions in the 17th and 18th centuries to conceal the movement of soldiers, ammunition, and other equipment from the enemy. They were also used to monitor the enemy’s underground activities of planting mines. After the fortifications were removed from the list of military objects in 1857, parks were established on the Ingrian and Swedish bastions.

Carved Stone Museum, located in the Ingrian bastion, can also be found in the bastion passages. The Museum presents the carved stone collection of the Tallinn City Museum.

Individual visitors can use an audio guide in the bastion passages. We also offer guided tours.

Free with Tallinn Card!

 

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TripAdvisor® Traveler Reviews

TripAdvisor logo tripadvisor rating 4.2 of 5

based on 1312 reviews

  • Underrated but mindblowing part of Tallinn

    tripadvisor rating 5 of 5
    September 3, 2026 By jiao12

    The underground tunnels are unique, underrated part of Tallinn which many skip. IMO unmissable

  • Don't skip the tunnels

    tripadvisor rating 4 of 5
    August 18, 2026 By knobbystiles

    I didn't make it to the top of the main tower because the steps up there looked pretty treacherous for the way down. However, the tunnel complex under the city was really interesting. If you're not... Read more comments

  • Special views

    tripadvisor rating 5 of 5
    August 5, 2026 By Ilona R

    Absolutely awesome place, both kids and adults loved it. The tunnels are nice and cool in the summer, making it perfect for hot days. The tower is also gorgeous with its views.