If the weather's taken a turn for the worse, why not spend the day at Tver State Museum? You'll be fascinated by just how much you can learn about the past here.
You're spoiled for sightseeing choice when staying in Tver. Tver State Museum is an ideal place to begin here, but there are plenty of other fine attractions to consider. Tver State University, Tver City Park, and Mikhail Krug Monument are near the collection of historical artifacts and and will cap off your day nicely.