Helsinki Cathedral is the most famous building in Helsinki, located on Parliament Square, a Lutheran church. Built in 1852, the Helsinki Cathedral is a white building with a pale green dome. The structure is exquisite and the atmosphere is extraordinary. It is the essence of Finnish architectural art. Helsinki Cathedral, also known as the White Church. In the winter, the snow covered the square in front of the church, the warm lights lit up and the whole church was holy. The building itself is very distinctive: the Greek-style temple building is above the Russian-style dome of the Orthodox Church, indicating that Russia's influence on Finland at that time has far surpassed that of European native culture. The interior of the church is still relatively simple, unlike the complex interiors of traditional Orthodox churches.