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Photo: Mx. Granger, CC0 via Wikimedia Commons
In Terminal 3 and want a respite from the airport chaos? In the mezzanine level of the Terminal 3 rotunda, in between the G and H gates, lies the O'Hare urban garden, an aeroponic oasis where vegetables and herbs are grown and then used in a few of the terminal's restaurants. There are a few small tables and it is considerably quieter than the rest of the airport. If you need further R&R, there is a yoga room on the same level.