One of the most imposing forts of Northern India. Junagarh Fort has remained unconquered till date. Junagarh Fort is a fort in the city of Bikaner, Rajasthan, India. This fort was built by Raja Rai Singhji, the sixth ruler of Bikaner, who ruled form 1571 to 1612 AD. The fort is surrounded by a high wall and deep moats.