Dadipark is the oldest theme park in Europe, per The Vintage News. It was opened by a local pastor in 1950 as a slightly religious, inexpensive theme park. However, things went south when the cheap instability of the rides caused a number of accidents.
One of the worst accidents occurred in 2000 two years before it closed, when a 9-year-old boy lost his arm on the Nautic Jet ride. The park closed "for renovation" in 2002 and never re-opened, and the photos are seriously haunting.