Facilities

Annaburg itself is a showcase of architecture and engineering. Built in 1892, the mansion replaced an earlier house on the property, the original residence of Christian Mathis. A Classical Revival building with Prussian influence, Annaburg is constructed of a combination of structural systems including brownstone, masonry, concrete, and wood frame. As originally designed, the house contained 35 rooms, was electrically lighted, had indoor plumbing, and had a mechanical air conditioning system, which Portner had invented in 1878.