This luxurious 1905 Beaux Arts mansion was built as the winter home of Larz Anderson, an American diplomat, and his wife, Isabel. Exemplifying Gilded Age Washington, the National Historic Landmark is located between 21st and 22nd streets along Embassy Row in the heart of Washington's historic Dupont Circle neighborhood. Today it is the home of The Society of the Cincinnati, the nation's oldest patriotic organization. More than four thousand objects preserve and interpret the history of the Revolutionary War, the Society of the Cincinnati, and Anderson House. Strengths of the collections include portraiture, armaments, Society Eagle insignias, and Asian art.

Larz and Isabel Anderson assembled an eclectic collection of European and Asian fine and decorative arts and historical American artifacts to furnish their Washington home. These objects now form the core of the museum's Anderson House collection, which also features family artifacts and the historic fabric of the mansion. The Andersons' collection includes objects typically sought after during the Gilded Age like European furniture, tapestries, and paintings, and Asian sculptures, ivories, and lacquer ware. But they also acquired religious artifacts from around the world and relics of American history, which were less commonly collected by their peers. 

Collection highlights include Asian Art: sculptures, paintings, metalwork, ivory and stone carvings, screens, lacquer ware, ceramics, and textiles from Japan, China, India, and Nepal; Two sets of Flemish tapestries, woven in Brussels at the turn of the seventeenth century, the silk and wool panels recently received extensive conservation treatment. 

In addition, Paintings & Murals include English portraits, European landscapes, Russian icons, contemporary portraits of the Andersons, and murals depicting scenes from American history and whimsical maps of Washington, D.C.; work by Joshua Reynolds, Peter Lely, Cecilia Beaux, José Villegas, and H. Siddons Mowbray. Mowbray's murals in the Key Room and Winter Garden are highlights of any visit to Anderson House and are his only works in Washington, D.C.