https://l450v.alamy.com/450v/pwkegc/crimea-russia-october-16-2018-people-attend-an-excursion-at-the-underground-sevastopol-museum-based-at-a-functioning-nuclear-bunker-under-sevastopols-city-centre-the-bunker-rates-first-class-and-is-optimized-for-sheltering-up-to-1000-people-it-was-built-in-1952-but-has-never-been-used-since-in-case-of-emergency-the-bunker-can-be-prepared-to-shelter-people-in-12-hours-the-nuclear-bunker-is-part-of-an-underground-system-of-atomic-shelters-which-can-host-the-citys-residents-and-authorities-as-well-as-several-plants-and-schools-in-case-of-a-nuclear-attack-sergei-malgavkotass-pwkegc.jpg