What is the setting of The Idiot by Fyodor Dostoevsky?

The first setting is the train carriage where the Prince meets Rogozhin and Lebedev for the first time. The carriage is full of passengers, and the Prince shows his innocence by talking openly in front of everyone. The train is traveling from Venice to St Petersburg.

The City of St. Petersburg is the main setting in the first part of the novel and the place where Rogozhin murders Nastassya. Within St Petersburg, the other settings are the hotel, Nastassya's house, Rogozhin's house and the Ivolgin's house.