It's always interesting visiting houses from another era. Wander around Peyo Yavorov House-Museum and try to imagine how this historic house once was.
You'll be spoiled for sightseeing choice when spending time in Sofia City Center. Peyo Yavorov House-Museum is a good place to start here, but there are numerous other interesting sights to experience. Alexander Nevski Cathedral, Mount Vitosha, and Ivan Vazov National Theatre are not far from the historically significant residence and and will cap off your day nicely.