Atomic bomb shelter

Nearly a kilometre of interconnecting passages carved into the rock below Petrov Hill

A network of vaulted passageways, forming a rectangular plan approximately 85 x 60 metres in area, provided 4-days’ shelter for up to 3,000 people in the event of a nuclear explosion.

Contact and address

Opening hours

This energy self-sufficient shelter offered protection for 3,000 people

One of the essential human drives that shapes our behaviour so as to ensure survival in the face of danger is the instinct for self-preservation. From the dawn of human history, humans have sought shelter against the malignant fates, searching out places in which they felt safe and that offered protection against a multiplicity of natural and societal threats.

The twentieth century, distinguished by its unprecedented scientific and technological development, introduced a new term to the strategy of war. With the onset of ‘weapons of mass destruction’ and development of the aviation industry, protecting civilian populations meant focusing on building anti-aircraft – and later fallout – shelters. In Brno, one such complex, buried beneath Petrov, was given the name ‘Denis’. It is located inside the rock massif of Petrov Hill and stretches for the most part below the area occupied by the Capuchin Gardens.

The Denis Shelter comprises a system of passages, intersecting at right angles, whose plan forms a rectangle approximately 85 x 60 m, with several entrances and an array of emergency exits. The arched corridors, cut into the rock and subsequently lined with brickwork, have a median size of about 3 x 3 m, and their total distance, combined with escape routes, comes to about 900 m. In the event of a nuclear attack, it would have been possible to survive inside the shelter for up to 4 days. In terms of water, electricity and a breathable air mixture, the shelter was self-sufficient, especially when ample stocks and rations had been stored away. These cramped spaces could have provided refuge for up to 3000 inhabitants. The only psychological support inside the passages was a public address system, broadcasting through a wired network.

Today, its long and empty corridors serve only as a depository for masonry fragments of King’s Chapel (Královská kaple), which once stood on the corner of Veselá Street and Dominican Square.

Admission fees

Night excursion with a guide

Denně mimo pondělí 19.00 – nutná rezervace Potmě s baterkami / za světla Prohlídky po objednání také v angličtině a dalších jazycích (min. 5 osob)

Bulk discounts

by arrangement, contact us at husova10z@gmail.com

Skupinové akce

Organizované školní prohlídky expozice – ZDARMA (pouze po objednání, vždy dopoledne, max. počet 90 studentů) Speciální zážitkové akce pro skupiny 10 – 90 osob (po domluvě, kontaktujte nás na husova10z@gmail.com)

Conditions for tours of the technical area:

The tour takes about 40–60 minutes depending on visitors’ requirements. This includes only a tour of the technical area of the 10-Z Bunker and not a visit to the exhibit prepared by Americký fond.

Tours are led by experts who try to adapt its content to interest small groups of visitors.

The temperature inside the 10-Z Bunker remains 14°C throughout the year – so you can borrow a period army jacket for the tour to keep you warm.

Exkurze probíhá pouze v počtu od 3 do 12 osob, Tours take place for groups of 3 to 12 and must be reserved as a group. Tours for more than 9 people are not possible as the labyrinth’s narrow corridors prevent large groups from moving through the bunker. For larger groups, we recommend splitting into multiple tours. You participate in tours of the 10-Z Bunker technical area at your own risk.

VOUCHER do Kostnice u sv. Jakuba

Voucher je nutné vyměnit za vstupenku osobně na pokladně podzemí Jakubské náměstí 1 v období jeho platnosti. Platnost voucheru je 6 měsíců ode dne zakoupení.

Doporučujeme vytvořit rezervaci předem na telefonním čísle +420 515 919 793 popřípadě e-mailem: kostnice@ticbrno.cz. U voucheru se slevou (senioři, studenti do 25 let, děti a ZPT)  musí být na pokladně podzemí prokázán nárok na slevu. Voucher pro rodinné vstupné platí pro 2 dospělé a 2 děti do 15 let. Voucher je platný pouze jednou a pro podzemí, do kterého je zakoupen. Voucher nelze vyměnit za finanční hotovost ani vrátit.

VOUCHER do Labyrintu pod Zelným trhem

Zakoupený voucher do Labyrintu pod Zelným trhem je nutné vyměnit za vstupenku osobně na pokladně podzemí Zelný trh 21 v období jeho platnosti.

Platnost voucheru je 6 měsíců ode dne zakoupení. Doporučujeme vytvořit rezervaci předem na telefonním čísle 542 212 892 popřípadě e-mailem: labyrint@ticbrno.cz. U voucheru se slevou (senioři, studenti do 26 let, děti a ZPT)  musí být na pokladně podzemí prokázán nárok na slevu. Voucher pro rodinné vstupné platí pro 2 dospělé a 2 děti do 15 let. Voucher je platný pouze jednou a pro podzemí, do kterého je zakoupen. Voucher nelze vyměnit za finanční hotovost ani vrátit.