The church of St-Petka-of-the-Saddlers (15C) was built under the Ottoman occupation with donations from the region's master saddlers. At that time, the building of churches was tolerated provided that their height did not exceed that of a soldier on horseback; this explains the construction of half-buried sanctuaries. The church features a small semi-circular apse and superb traces of frescoes (it is possible to see three layers of paintings (15C, 17C and 19C). It is also the resting place of the revolutionary leader Vasil Levski, hanged in Sofia in 1873.