Complex sentence: At the foot of the fortified rocks 609.6 meters above the sea level stands the town of Bhongir, it has a unique egg-shaped construction with two entry points protected by huge rocks, so the fort was considered practically impregnable by invading armies.
Split into simpler sentences: At the foot of the fortified rocks, 609.6 meters above the sea level stands the town of Bhongir. The rock had a unique egg-shaped construction with two entry points protected by huge rocks, so the fort was considered practically impregnable by invading armies.