Helsinki Cathedral is the Finnish Evangelical Lutheran cathedral of the Diocese of Helsinki, located in the Kruununhaka neighborhood in central Helsinki. The church was originally built in 1830-1852 as a tribute to the Grand Duke of Finland, Tsar Nicholas I of Russia. It was also known as St. Nicholas Church until Finland's independence in 1917. It is a major landmark in the city. More than 500,000 people visit the church each year, half of whom are foreign tourists.