Set inside a former Tsarist prison your tour begins on the ground floor, where a walk around the former cells allows visitors to glimpse depressing sights like huge, rusty restraints, a pitch-black isolation cell and playing cards and chess sets produced by the inmates. From there the museum is a chronological journey on the "Roads to Freedom" experienced in the city, covering the years 1768-1923. The 1905 workers revolution is covered in detail, with prisoners letters and presses used to print inflammatory leaflets all on display. Hugely interesting, though the paucity of English-language translations is guaranteed to frustrate.

Admission free.