This house is located at 2034 20th Street, Northwest. The listing says:
“This remarkable property is part of the Kalorama Triangle Historic district & is currently home to an Embassy. This victorian style 5 story residence feat. 7 fireplaces, over 9,000 finished interior sqft., 19 spacious rooms, 6 bathrooms, high ceilings & grand entrance foyer. Potential for luxurious multi-family or condo conversion. Zoned R5D.”
You can see more photos here.
This 10 bed/3 full/3 half bath is going for $3,750,000.