Ralph Waldo Emerson

The Ralph Waldo Emerson House is a house museum situated at 28 Cambridge Turnpike, Concord, Massachusetts, and a National Historic Landmark for its associations with American philosopher Ralph Waldo Emerson. The museum is open mid-April to mid-October and an admission fee is charged.

The home was built in 1828 by the Coolidge family and named "Coolidge Castle". It was used as a summer house on the village outskirts, beside the Cambridge and Concord Turnpike. It is a four-square, two-story frame building in a house style general to many New England towns.