Facebook has settled into its 185,000-square-foot office in the historic Wanamaker Building at 770 Broadway near Astor Place, and to mark the occasionand make everyone else feel sad about how completely boring and inadequate their offices arethey're unveiling the space with an event (and feature in the Wall Street Journal). Frank Gehry designed the new work space, now home to 500 employees and engineers. The floors have open layouts, there's a full service cafeteria and a library, as well as all of the things that one thinks of when picturing a hip tech company office, i.e. gaming tables, exposed ceilings, and custom-made art. The social media juggernaut joins AOL, Adweek, Backstage, and Billboard in the building, and IBM Watson and online marketplace 1stdibs are across the street in the Deathstar.