French Chateau style castle completed in 1892 was designed by Hazlehurst and Huckel for Joseph Sinnott. Since 1921, the estate has served as the campus of Rosemont College. Previously called Rathalla it is the campus Main Building. The exterior features many chimneys, turrets, carved figures, and grotesques; the interior has lavish fireplaces, woodwork, and stained glass.
