Built in 1799, this former carriage house became a day hotel (a sort of country club) in 1826. Now restored and owned by the Colonial Dames of America, it provides a glimpse of the days when the city ended at 14th Street and this area was a country escape for New Yorkers. A 45-minute tour (the only way to see the museum and garden) passes through the eight rooms that display furniture and artifacts of the Federal and Empire periods. Many rooms have real artifacts such as clothes, hats, and fans that children can handle. There is a lovely adjoining garden, designed in an 18th-century style. Tours are on demand and can be geared to specific interests. Arrive at least a half hour before closing time to allow for tour.