If you want the specific branch mentioned earlier (on Dengshikou Xijie), it is the one at the top of the web-page linked above by moondog.

For a map of this location (assuming you are outside China .... )
(1) go to maps.google.com
(2) put this text in the search bar: 北京市东城区灯市口西街32号
(or use coordinates: 39.918525,116.408983)
(3) press search
(4) zoom the map a couple of times

Where it says "SjiMinfu" is about the correct location.

(5) take a screen shot - as if you don't have a working VPN Google maps might not work for you once in Beijing.

Caveat: location verified from Baidu street view - so in fact only valid for as long as it takes to knock down a building - which in China is not very long...