Complex sentence: Formerly University College Building, Harry J. Eustace Hall, formerly Horticultural Laboratory is the only building on MSU's main campus that is on the National Register of Historic Places.
Split into simpler sentences: Formerly University College Building, Harry J. Eustace Hall, formerly Horticultural Laboratory is a structure on the campus of Michigan State University. Eustace-Cole is the only building on MSU's main campus that is on the National Register of Historic Places.