The nondescript flat where dissident scientist Andrei Sakharov, father of Russia's hydrogen bomb, spent seven years in exile after protesting the 1979 Russian invasion of Afghanistan. The Nobel laureate was held incommunicado until 1986, when Mikhail Gorbachev finally released him. Exhibits include background on Sakharov's life as well as the apartment itself. It's located 10km south of the centre. To get there, take a taxi or bus 1 from pl Minina i Pozharskogo or pl Gorkogo (stop: Muzey Akademika Sakharova).