Twitter's headquarters building
... that Twitter's headquarters building in San Francisco was built as a trade center for furniture wholesalers in 1937?
... that <b id="mwBX4"><a href="./Market_Square_(San_Francisco)" id="mwBX8" rel="mw:WikiLink" title="Market Square (San Francisco)">Twitter's headquarters building</a></b> <i id="mwBYA">(pictured)</i> in <a href="./San_Francisco" id="mwBYE" rel="mw:WikiLink" title="San Francisco">San Francisco</a> was built as a trade center for furniture wholesalers in 1937?