The iconic Shibuya 109 building. The name originates from the Tokyu Group who built the facility. "Tokyu" (とうきゅう) is converted to the reading for "10" as "To" and "9" as "Kyu". Its also called "Ichi Maru Kyu".
Back in 1979 when the facility first opened, the tenants were stores which catered for women between the ages of 20 - 30. These days however, tenants cater for teenagers to ladies in their twenties.
And this is Shibuya 109 by day. They've got a small stage at the front where they do live events from time to time - YouTube Neta Battle being one for example.
To get to Shibuya 109, just get off at Shibuya station - you will see it from the Hachiko crossing.