Statement of Significance (as of designation - June 24, 1986):
Completed in 1876, this is representative of the High Victorian Gothic Style which was made popular from the early 1860s until the 1870s by the writings of English critic John Ruskin (1819-1900) . With an open interior, it is essentially a stone cylinder supporting a cast-iron drum and dome between 94 and 100 feet in diameter. It was to be the focal point of the unrealized plan of Union College, founded in 1795, one of the oldest "planned" schools in the nation. It has served as a museum and a library.