Purnagad Fort - Credit: Wikimedia Commons
Purnagad Fort is a fort located 25 km from Ratnagiri, in Ratnagiri district, of Maharashtra. This fort is very small but an important fort in Ratnagiri district for Kanhoji Angre's Navy that evolved as the modern Indian Navy. The Fort is spread over 22 acres and located on a northern hill on Muchkundi River. Read more on Wikipedia
Source: en.wikipedia.org