the peter and paul fortress, the original citadel of st. petersburg, russia, founded by peter the great in 1703 and built to

and architectural architecture basilica bastion belfry building built cathedral chapel christian christianity church citadel city cityscape culture defense europe exterior famous fort fortification fortress gold heritage historic historical history island journey landmark landscape leningrad memorial memory neva outdoor paul peter petersburg place religion religious river russia russian saint sculpture sightseeing skyline statue structure the tour tourism tower writer