Butterfly House Sculptor Dead in Bulldozer Mishap

A sculptor and founder of the interactive City Museum in St. Louis has died in Cementland, just north of the city's boundary.

Robert Cassilly was pinned by a bulldozer he was operating that tipped over, Monday, on his 54-acre public art property which is a work in progress, according to Wikipedia.

Cassilly, 61, created the massive cement butterfly sculpture located in Faust Park, in Chesterfield, in 1999.

The butterfly sits near the and tends to awe visitors both young and older on first sight, primarily with its large size. It points the way to the Butterfly House—with little doubt.

Cassilly was based in St. Louis and graduated from Fontbonne University with a master's degree in art.

He founded the popular hands-on City Museum in 1997. The museum posted this as its opening website page earlier Monday:

City Museum is saddened by the loss of our founder and inspiration, Robert Cassilly. (1949-2011)

City Museum is located at 701 N. 15th St., in St. Louis.  

Cementland is a former cement factory that since 2000, Cassilly was transforming into a park of public art.

is located at 15185 Olive Blvd. in Chesterfield 63017