1 km from the architectural reserve Melnik are located the remains of Despot Slav fortress. It is believed that it was built in the XIII century and later during the reign of Despot Slav, has been expanded and strengthened and became a well fortified fort, which kept the riches of the region. The fortress had an area of about 3000 square meters and had a shape of an irregular polygon. Today there are preserved only part of the east wall and small parts of the southern and western walls. The remains of this fortress were found in the foundations of the Church of St. Nicholas, which is another important historical and archaeological site. At the same place an archeological study found the remains of an ancient temple of Artemis.