Ha Ha Tonka State Park (Lake of the Ozarks, Missouri)

Now a state park, Ha Ha Tonka was once an estate build around the turn of the century by a wealthy business man.  The estate, designed as a European-style castle, burned in 1942 and was later turned into the centerpiece of the state park.

For a very interesting history of Ha Ha Tonka, including the castle, visit DNR's website here.

My great aunt, Esther, actually had dinner in this castle, obviously before it burned.