I lived in Ukraine for a couple of years, and visited Saint Sophia a number of times. I always found it a beautiful cathedral, and along with the grounds was always a spectacular visit. These visits became more significant to me when my father, an avid geneologist, found out that one of our ancestors was Yaroslav the Wise, who built the cathedral and is buried in a sarcophagus there. I highly recommend a visit to Saint Sophia Cathedral on your next visit to Kiev.