The first wooden place of worship was built here in 1760, and the current building went up in 1814. It is home to one of the largest congregations of Old Believers in the world (about 25,000), an Orthodox Christian sect that fled persecution in Russia in the 17th century. Take tram N°7 or 9 to the Daugavpils stop. You can't miss its shiny golden dome, but we recommend you call ahead if you'd like to go inside.