Considered one of the greatest surviving Gilded Age mansionsin America, Lynnewood Hall is a 110-room Neoclassical Revival vacant mansionoutside of Philadelphia. Built at the turn of the twentieth century, it wasdesigned by architect Horace Trumbauer for Peter A.B. Widener, a prolific artcollector and an investor in the ill-fated Titanic. It once housed oneof the most important Gilded Age private art collections of Europeanmasterpieces and decorative arts ever assembled in the US.