Siddavatam is the site of an important 14th century fortress in southern India. It's located in Kadapa, an interior district of the southern state of Andhra Pradesh. Situated on the let bank of the Penna River, the fortress was completed in 1303. Covering an area of about 12 acres, the fortress has several temples within its walls, namely the Ranganatha Swamy, Siddheswara, Durga, and the Bala Brahma Temples. Seen here in this drone video by kktheij, the fortress underwent substantial alterations and improvements in the 16th century.