Frederick Law Olmsted National Historic Site where Frederick Law Olmsted (1822-1903) founder of American landscape architecture designed parks. Brookline, MA. | Frederick Law Olmsted's home where starting 1883 this landscape architect & his sons designed major American parks. It is now run as a house museum by the National Parks Service as the Frederick Law Olmsted National Historic Site. Brookline, MA. | "Fairsted" garden design at Frederick Law Olmsted National Historic Site. Brookline, MA. | Entrance hall at Frederick Law Olmsted National Historic Site museum house. Boston, MA. |