| 2025-05-18 | Way up or way down |
| 2024-08-16 | Things found in a well |
| 2022-10-30 | Flight path? |
| 2021-12-18 | One way to the top |
| 2020-09-07 | Alternative to an elevator |
| 2020-03-11 | Alternative to an elevator |
| 2017-08-06 | Mezzanine access |
| 2016-06-21 | Way up or way down |
| 2015-06-16 | Alternative to the elevator |
| 2012-08-15 | Some flights |
| 2012-07-30 | Flight between floors |
| 2012-04-21 | The health-conscious often take them |
| 2010-08-08 | Inside flight |
| 2008-04-05 | Connecting flight |
| 2004-09-14 | Fire escape, e.g. |
| 2004-01-11 | They may be taken in an emergency |
| 2003-12-17 | Elevator alternative |
| 2002-10-29 | Link between stories? |
| 2000-04-07 | Way down, perhaps |
| 2000-01-14 | Well fixtures |
| 1998-05-16 | Good source of exercise |
| 1998-03-22 | Domestic flights |
| 1998-02-01 | Fire escape route |
| 1997-03-03 | Escalator alternative |
| 1996-10-21 | Elevator alternative |
| 1996-10-05 | Way up |
| 1996-08-24 | Flight |
| 1996-02-26 | Elevator alternative |
| 1993-12-01 | Some flights |