This church was built between 1900 and 1903 in the Byzantine style, and was meant for the local military garrison. The church, which was built to honour St Nicholas, patron saint of all seamen, and it was consecrated in the presence of Tsar Nicholas II. The ornate building was sacked by the Germans during World War I. During Latvia’s period of independence, the cathedral was used by the local military garrison. The Soviet military, in turn, turned into a sports hall, a cinema for sailors, and a warehouse. There are stories to say that Soviet soldiers broke off bits of the golden mosaic of the icons in the church. The building has now been returned to an Orthodox congregation. The builders of the cathedral used a unique way of pouring cement, which is why there are no supporting columns in the church. Instead, its weight is bolstered by its walls, with four arched vaults supporting them. It is the tallest Orthodox cathedral in Latvia at this time.