Konstantin Andreyevich Thon, also spelled Ton was an official architect of Imperial Russia during the reign of Nicholas I. His major works include the Cathedral of Christ the Saviour, the Grand Kremlin Palace and the Kremlin Armoury in Moscow.

Nevsky Prospect is a main street located in the federal city of St. Petersburg in Russia. Its name comes from the Alexander Nevsky Lavra, the monastery which stands at the eastern end of the street, and which commemorates the Russian hero Prince Saint Alexander Nevsky (1221–1263). Following his founding of Saint Petersburg in 1703, Tsar Peter I planned the course of the street as the beginning of the road to Novgorod and Moscow. The avenue runs from the Admiralty in the west to the Moscow Railway Station and, after veering slightly southwards at Vosstaniya Square, to the Alexander Nevsky Lavra.