The Cathedral of the Protection of the Most Holy Mother of God is one of Kharkiv's older sacred buildings, with roots in the Cossack settlement that grew outside the city's early fortress. Its value is in that age and continuity, rather than in the scale that makes Annunciation Cathedral dominate the skyline.
Look for the layered church architecture and the quiet contrast with Kharkiv's larger imperial and Soviet-era buildings. Conditions in the city can change quickly, so check local advice before visiting.