85 feet tall underground waterfall in Ruby Falls Cave of Lookout Mountain. Can only be seen via guided tour. Absolutely incredible and beautiful place to visit, but make sure to book tickets well in advance!
A railroad museum and historical railroad with optional train rides! Founded as a chapter of the National Railway Historical Society in 1960 by Paul H. Merriman and Robert M. Soule, Jr., along with a group of local railway preservationists. Recommend getting tickets in advance!
13-acre zoological park located in Warner Park with optional petting zoo!
Non-profit public aquarium with a focus on freshwater ecosystems and an interactive dual-building layout. Considered one of the largest freshwater displays in aquariums around the world.