Kronstadt is a district of St. Petersburg located on the island of Kotlin in the Gulf of Finland, at a distance of 48 km from St. Petersburg; it is connected to the mainland by a motorway. The area of the island is 1584 hectares.

Kronstadt is one of Russia's most famous small and medium-sized historical towns and boasts an outstanding historical and cultural heritage. Over the past three centuries, the city has played a significant role in the history of Russia.

Kronstadt gained unique importance as a marine outpost built to protect the new capital, St. Petersburg, almost immediately after its foundation. The history of the town is inextricably linked with Peter I, the emergence and reinforcement of the Russian Navy, the great inventions and discoveries of Russian scientists, the heroic events of the Great Patriotic War.

The Historical Part of Kronstadt and Kronstadt fortress are listed among UNESCO World Heritage Sites as a part of the Historic Centre of Saint Petersburg and Related Groups of Monuments.

Kronstadt features more than 300 historical, cultural and technical monuments. Unique hydrotechnical and defense structures, beautiful buildings and ensembles, such as Kronschlot Fort, a complex of provincial houses of the early 18th century, the world's first self-draining canal and dock, constructed for Peter the Great, a military town of the 18th century, The Naval Cathedral of the early 20th century, constructed with the use of some methods employed in Hagia Sophia church in Constantinople, and other monuments attract the attention of many tourists.