Naggar, was Kullu's erstwhile capital for 1400 years. The fact that it's beautiful 16th century castle, built of wood and stone, still stands intact, proves the earthquake resistant properties of the local architectural style. The castle has now been converted into a hotel, under the Himachal tourism department. Naggar also houses a gallery that showcases the splendid paintings of the famous Russian artist, Nicholas Roerich.

The shrine of Jagati Pat, the pagoda like shrine of Goddess Tripura Sundari, the shrines of Gaurishankar and Murlidhar, built in the shikhara style, are some of the major temples of the region. Facing the castle, is also a small temple dedicated to Narasimha, the leonine incarnation of Lord Vishnu.