Meeting point: Jesuitenplatz, Lucerne, in front of the Jesuit Church.<br /> Price: 30 Sfr per person, cash only on site.<br /> Booking: englishtours@unterirdisch-ueberleben.ch (note the date, number of people).<br /> <br /> On this tour you'll experience Sonnenberg, one of the world’s largest civilian bunkers located in the heart of the city of Lucerne!<br /> This giant bunker was built between 1970 and 1976 at a cost of 40 million Swiss francs. If it had ever been needed, two motorway tunnels would have been sealed by four 350-tonne gates. With room enough for 20,000 beds and hundreds of toilet cabins, roughly one third of the population of Lucerne could have found shelter here inside Mount Sonnenberg. In addition to the two tunnels, the bunker was equipped with a seven-floor, subterranean building furnished with a control office, a radio studio, an emergency hospital, detention cells and more.<br /> The <a href="https://www.inyourpocket.com/lucerne/surviving-underground-sonnenberg-bunker-tours_135085v">Surviving Underground</a> tour provides a fascinating insight into Cold War times and the fear of nuclear weapons and illustrates the uses of the bunker today.<br /> Public tours in English (2 hours) are held on the last Sunday of each month.