Free Walking Sightseeing Tour #12 in Saint Petersburg, Russia

The water tower of the Krasny Gvozdilshchik plant is located in St. Petersburg, at 4 25th line of Vasilievsky Island, at the corner with the Maslyany Canal. It is recognized as an example of the style of constructivism and the Soviet avant-garde.

Wikipedia: Водонапорная башня завода «Красный гвоздильщик» (RU)

S-189 is a Project 613B diesel submarine of the Soviet Navy.

Wikipedia: Soviet submarine S-189 (EN), Website

Central Naval Museum is a naval museum in St Petersburg, Russia, reflecting the development of Russian naval traditions and the history of the Russian Navy. The museum’s permanent display includes such relics as the Botik of Peter the Great, Catherine II’s marine throne, trophies captured in sea battles, and the personal belongings of prominent Russian and Soviet naval commanders. The collection includes paintings by Ivan Aivazovsky, Alexey Bogolyubov, Lev Lagorio and other marine artists, ship sculpture, navigational instruments, naval equipment and machinery from the 17th to 20th centuries and numerous models of ships.

Wikipedia: Central Naval Museum (EN), Website, Youtube

In many countries, kilometre zero or similar terms in other languages denote a particular location from which distances are traditionally measured and some use this as their official country location or coordinates for faster search at space satellites, this is also used for measuring distances between different countries around the world. Historically, they were markers where drivers could set their odometers to follow the directions in early roaming guide books.

Wikipedia: Kilometre zero (EN)

The A.S. Popov Central Museum of Communications is a museum of science and technology founded in 1872. It is located in the historic centre of Saint Petersburg, Russia, near Saint Isaac's Square.

Wikipedia: A.S. Popov Central Museum of Communications (EN), Vk

The Monument to Nicholas I is a bronze equestrian monument of Nicholas I of Russia on St Isaac's Square in Saint Petersburg, Russia. It was created by French sculptor Auguste de Montferrand and unveiled on July 7 [O.S. June 25] , 1859, the six-meter statue was considered a technical wonder at the time of its creation. It is one of only a few bronze statues with only two support points.

Wikipedia: Monument to Nicholas I (EN)

The water monitoring system in St. Petersburg is a system of structures.

Wikipedia: Система наблюдения за уровнем воды в Санкт-Петербурге (RU)

The Palace of the Yusupovs on the Moika, known as the Moika Palace or Yusupov Palace, is a former residence of the Russian noble House of Yusupov in St. Petersburg, Russia, now a museum. The building was the site of Grigori Rasputin's murder in the early morning of December 17, 1916. Sometimes called the Moika Palace to tell it apart from other palaces of the same family in Saint Petersburg, though it is not the only palace on this river in the city.

Wikipedia: Moika Palace (EN), Website

Alexeevsky Palace is a Revivalist palace compound on the bank of the Moika River in Saint Petersburg. It was erected in the mid-1880s as a private residence of Grand Duke Alexis and his family.

Wikipedia: Alexis Palace (EN), Website