Not super urbex-y, just I place I love to frequent, year round. Pics are of the spring house, which once had a beautiful copper roof, destroyed by arsonvandalfucks. Grounds also have some foundations of a bottled water plant, hotel, and wading pool still fed by spring water (although occupied by aquatic plants and bullfrogs).
Publicly view-able (Paradise Springs, Eagle WI, Kettle Moraine WI State Forest) and in the DB:
https://www.uer.ca...ow.asp?locid=32888 The DB linked above was just after a dam failure - I am happy to say a successful crowd funding effort has resulted in repair of the dam and the water levels have returned to normal. Full history is in the DB as well, if you dig that sort of thing....