The district subsequently deteriorated, but it underwent regeneration in the late 1970s and was âgentrifiedâ in the 1980s. By the early 21st century, Haight-Ashbury was among San Franciscoâs most affluent and expensive neighbourhoods, with many restored Victorian homes.
Smithsonian museums are open every day of the year except December 25 unless otherwise noted. Smithsonian museums are open every day of the year except December 25 unless otherwise noted. 1  Open 8:30 a.m.â5:30 p.m.
The Smithsonianâs National Museum of Natural History is located at 10th Street and Constitution Avenue N.W. in Washington, D.C. The museum is open daily from 10 a.m. to 5:30 p.m., with extended hours during the summer (until 7:30 p.m.). Admission is free.