Happiest of birthdays to Emily Mueller! h/t to Matt and Molly Haase for helping get this adorable betsy-gram all the way to the Senate side from Kansas.

Where is this mysterious location? Northwest DC? A Maryland mansion? A European country? If you’re a famous Capitol Hill reader, you probably know where to find this hidden gem. This is the interior of Frederick Law Olmsted‘s well-shaded Summer House, tucked into a Senate side corner of the U.S. Capitol’s west front …