Kronstadt is a town and naval base on Kotlin Island, just west of St. Petersburg, Russia. Anchor Square is dotted with military memorials. On the square, the 20th-century Byzantine-style Naval Cathedral has an ornate interior. Tree-lined Petrovskiy Park is home to the 19th-century Monument to Peter the Great. Kronstadt History Museum displays regional artifacts. Offshore is the man-made island of Fort Alexander.