History: The Stockton Mineral Baths, renovated in 1920 to become the world's largest swimming tank [MIC] [966 x 698]

https://i.redd.it/5m0hnid2bguz.png via /r/HistoryPorn https://www.reddit.com/r/HistoryPorn/comments/796m1g/the_stockton_mineral_baths_renovated_in_1920_to/?utm_source=ifttt