 Other visitor attractions in the mine include the 75 @-@ meter @-@ high ( 245 feet ) Assembly Hall ; Pul @-@ Saraat , a salt bridge with no pillars over a 25 @-@ meters @-@ deep ( 80 @-@ foot @-@ deep ) brine pond ; Sheesh Mahal ( Palace of Mirrors ) , where salt crystals are light pink ; and a cafe . 
