our secret treehouse creations can also be found in the following places:

Carnegie Museum of Natural History
4400 Forbes Avenue, Pittsburgh, Pennsylvania 15213
Fernbank Museum of Natural History
767 Clifton Road Atlanta, Georgia 30307
Amuse: Modern Cottage Industry
118 W. Green Street Ithaca, New York 14850
Morris Arboretum
100 East Northwestern Avenue Philadelphia, Pennsylvania 19118
Lowell Observatory
1400 W. Mars Hill Road Flagstaff, Arizona 86001
Mütter Museum
19 South 22nd Street Philadelphia, Pennsylvania 19103
Oakland Museum of California
1000 Oak Street Oakland, California 94607
History of Diving Museum
82990 Overseas Highway Islamorada, Florida  33036
Sam Noble Museum
2401 Chautauqua Avenue Norman, Oklahoma 73072
Berkshire Museum
39 South Street Pittsfield, MA 01201 
University of Wisconsin Stevens Point Natural History Museum 
900 Reserve Street Stevens Point, WI 54481 
Split Rock Lighthouse
3713 Split Rock Lighthouse Road Two Harbors, MN 55616
Charles A. Lindbergh Historic Site
1620 Lindbergh Drive South Little Falls, MN 56345 
Olana State Historical Site Center
5720 State Route 9G Hudson, New York 12534
Strange Ways
910 Whalley Avenue New Haven, CT 06515
Great Parks of Hamilton County
10245 Winton Road Cincinnati, Ohio 45231
Cornell Botanic Gardens- Brian C. Nevin Welcome Center
124 Comstock Knoll Drive Ithaca, New York 14850
B:Hive Bridgeport
285 Fairfield Avenue Bridgeport, Connecticut 06604
Small Potatoes
309 Otrobando Drive Norwich, Connecticut 06360
Museum of the Earth
1259 Trumansburg Road  Ithaca, New York 14850
Cayuga Nature Center
1420 Taughannock Blvd  Ithaca, New York 14850