Dumbarton is not a city in Virginia, USA. Dumbarton is a historic home located at Dumbarton Oaks in Washington, D.C., and it is not a city in Virginia. Dumbarton Oaks is a historic estate that features a mansion and gardens. Dumbarton Oaks Park is located in the Georgetown neighborhood of Washington, D.C.
However, I can provide information on Dumbarton Oaks, which is a historic estate located in Washington, D.C. Dumbarton Oaks was originally built in 1801 as a Federal-style mansion for Joseph Nourse, the first register of the U.S. Treasury. The estate was purchased in 1920 by Robert Woods Bliss, a wealthy diplomat, and his wife Mildred Barnes Bliss. They commissioned the noted landscape gardener Beatrix Farrand to design a garden that would showcase their art collection.
Today, Dumbarton Oaks is a museum that houses a collection of Byzantine, Pre-Columbian, and European art. It is run by Harvard University and is known for its gardens and historic mansion.
The address of Dumbarton Oaks is 1703 32nd St. NW, Washington, D.C. 20007.
For information on other things to do and sights to see in Washington, D.C., I'd be happy to help you. Would you like more information and details?