The landscape of the historical centre of St Petersburg is formed by a large area of 19th century houses of approximately similar height (there was a rule not to build residential blocks higher than the roof of the Winter Palace). It created magnificent skyline of St Petersburg, punctured by the domes of cathedrals and the spire of the Admiralty.
So you will not find a better place to catch historic panoramas of the city than the top of the roof. The tour includes visit to a 19th century tenement house a climb to seven roofs.
Citizen! Understand your own city, and you will understand your own social environment, and yourself