A military bunker designated I.a/12/B located near Prague, Czechia. The site is part of the network of Cold War-era fortifications associated with the Soviet occupation of Czechoslovakia, as referenced in surveys of forgotten bases around the capital. The alphanumeric designation suggests it was part of a standardized military infrastructure system, likely constructed during the period of Soviet military presence in the country.
Its precise function, current condition, and historical details are not specified in available sources, representing one of many such relics from the Cold War period in the region.