The Stoy Museum building was constructed in 1773 as a home for Dr. Stoy. The museum contains about 40 separate displays including a one-room schoolhouse, a general store, and community industries such as blacksmithing, farming, milling, carpentry, weaving, printing, shoemaking, and mining. The Hauck Research Archive contains Lebanon County church, cemetery, and census records, newspapers, maps, family histories, city directories, photographs, postcards, and more. Research by mail is available. The gift shop sells a variety of publications on topics of local historical interest, and a variety of handcrafted gifts. The Union Canal Tunnel, the oldest existing transportation tunnel in the US, was constructed in 1827 for the canal linking Reading and Harrisburg. The surrounding 100-acre free park includes picnic tables and walking trails. Scheduled boat rides are also available. The Tunnel is a National Historic Civil Engineering Landmark and a National Historic Landmark.