I've been in a few, but I'm curious, what have you explored and found?
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Abandoned Pool In Palanga, Lithuania
Abandoned Holiday Resort In Áporka, Hungary
Abandoned Country Club/Golf Course In Windermere, Fl. I Have Not Explored The Building, But I Have Explored The Golf Course, And The Area Around It.
Talgarth Asylum. Wales. Spent A Whole Night Exploring
One or two of the rooms were happy places others not so much...