Frederick County Landmarks Foundation, a private non-profit organization, promotes the preservation and appreciation of historic sites, structures, natural landmarks, and communities of Frederick County, Maryland. FCLF offers fun, cultural events throughout the year for all ages! In addition, we invite you to step inside the Schifferstadt Museum.This special home, built c. 1758, was designated a National Historic Landmark in 2017. Tours are available on Saturdays & Sundays from 2 - 5 pm (April - mid-December). Group tours by reservation.