Historians suggest that Prince Igor Svyatoslavich and his brother Vsevolod visited the site where the Khalkov underground monastery is now located. They arrived here from Novgorod-Seversky and Trubchevsk, and then in May 1185, they set off along the Izyum road along the Oskol River to the south, towards the Polovtsian steppes.

This place is famous for its underground church and caves carved into the chalk hill. In 1649, monk Gelasius founded the Khalkov-Tsar-Nikolsky (later Trinity) male underground monastery here.

In 1764, by the decree of Empress Catherine II, the monastery was closed, but local residents continued to use the underground church for winter services, as the caves maintain a constant temperature year-round.

In 1990, the caves were partially restored and opened as a museum. Since November 19, 1995, services have resumed in the underground church.