Sky lobby

Early uses of the sky lobby include the original Twin Towers of the World Trade Center and 875 North Michigan Avenue in Chicago.

[1] Nearly 200 people were estimated to have been in the 78th floor sky lobby of the South Tower of the original World Trade Center when it was hit directly by United Airlines Flight 175, leaving only around a dozen who survived the impact and escaped the tower before it collapsed.

The sky lobby is on the 64th floor; Each set of five to six stories is served by a separate bank of elevators.

The elevators to the sky lobby, along with the ones used for the nonstop service to the 100th-floor One World Observatory, are the fastest in the Western Hemisphere.

[6] The tower's 44th floor sky lobby includes a pool, gym, dry cleaner, convenience store, about 700 mailboxes, two "party" rooms, a sitting area overlooking Lake Michigan, a small library, a refuse room (with trash chutes emptying here), offices for the managers of the residential condominium,[7] and a polling station for residents during elections.