St. Petersburg , which is often described as Russia’s cultural capital, certainly lives up to the label. Here, you’ll come across one of the most highly regarded museums in the entire world: the Hermitage. This museum, which is a stop on several of our St. Petersburg tours, is home to one of the largest art collections on earth. Other exciting things to do in St. Petersburg include an evening walk through Palace Square, the central city square, and a visit to Saint Isaac’s Cathedral. You can find more St. Petersburg city tours below.