St. Nicholas' Naval Cathedral

St. Nicholas Naval Cathedral is a major Baroque Orthodox cathedral in the western part of Central Saint Petersburg. It has always been closely associated with the Russian Navy, serving as its main shrine until the Russian Revolution.

In the upper church there are numerous memorial plaques for the crews of the sunken Soviet submarines, including K-278 Komsomolets. The crew of the submarine K-141 Kursk has also been commemorated there.

The marine regimental church was built on the bank of the Kryukov Canal in 1753–1762 to a design by Savva Chevakinsky, the main architect of the Russian Navy, in place of an earlier wooden church. A freestanding four story bell tower with a tall gilded spire was erected in 1755–1758.