The Hermitage Museum is one of the most popular attractions in St. Petersburg, receiving roughly 4.2 million visitors a year, or 14,000 per day. It’s also closed on Mondays, so expect the number of visitors to be high whichever day of the week you visit. It will be slightly less crowded just after it opens in the morning, so try to arrive earlier in the day. If it’s possible to time your visit to avoid weekends, days with free entry, and the summer holidays between June and August, you’ll also have a better chance at avoiding the most crowded days. On Wednesdays and Fridays, the museum is also open late, and the crowds generally begin to subside around 4 pm.