the Ranjit Institute of Poly-Radio Therapy, the Solarium was designed by French architect Jean Saidman for Jam Shri Ranjitsinhji. This slowly revolving tower provided full daylong sunlight to treat skin diseases. With the destruction of two similar solaria in France during World War II, this is probably now the only one of its kind in the world, certainly in Asia. Because of advancements in medicine and treatment, it is now obsolete and not in working condition. Vardhman Shah's Temple Vardhman Shah's Temple is one of the main Jain temples in Jamnagar. Its shrine is dedicated to Adinathji, the first Tirthankara of Jainism. Its construction started in 1612, during the reign of Jam Jasaji I, and was completed in 1620. In 1622, devotees built 52 small deri or temples around the main building Willingdon Crescent Willingdon Crescent was constructed by Ranjit Singh to replace a slum area. Inspired by Singh's European travels, it is an arcade of cusped arches, bigger on the ground floor and smaller on the upper storey. It has pilasters on the curving walls and balusters on the parapet. There is a statue of Jam Saheb in the center of the crescent. The 2001 Gujarat earthquake caused slight damage to this shopping area. Sports Cricket is a major sport in Jamnagar. A number of Indian Test cricketers hail from Jamnagar, including Vinoo Mankad, Indrajitsinhji, Ajay Jadeja, and Ravindra Jadeja. HH Shri Jam Ranjitsinji built the Ajitsinhji Pavilion cricket ground in 1908. The Ranji Trophy and Duleep Trophy Indian cricket competitions were named in memory of the princes of Jamnagar. The municipal corporation built the sports complex with a swimming pool, badminton court, and other facilities. There is also an 80-year-old sports club, Summair Sports Club, built by the erstwhile rulers of Jamnagar. It has a swimming pool, tennis, squash, and badminton courts, a billiard hall, a table tennis facility, and a hotel. Parks and recreation Museums The Kotha Bastion museum contains sculptures, coins, inscriptions, copper plates, and the skeleton of a whale. The museum also has an old well where water is drawn by blowing into a small hole in the floor. The Lakhota Museum is in the former Lakhota Palace. This small museum has a collection of sculptures from the 9th to the 18th centuries, antique weapons, and pottery found in medieval villages from the surrounding area. Parks and gardens Bhuchar Mori Shahid Van Bhuchar Mori Shahid