Yekaterinburg, alternatively romanised as Ekaterinburg, is Russias fourth-largest city after Moscow, Saint Petersburg, and Novosibirsk, with a population of 1,349,772 as of 2010. Situated on the Iset River, the city was built in November 18, 1723, and named after Russian emperor Peter the Greats wife, Yekaterina, who later became Catherine I after Peters death. In 1924, the city was named Sverdlovsk after the Communist party leader Yakov Sverdlov, and in 1991 back to Yekaterinburg. Yekaterinburg is a modern city in Russia, and is the main industrial and cultural centre of the Ural Federal District. The city had experienced economic and population growth and the city in the Contemporary Era and some of the tallest skyscrapers of Russia are built here.