Historical clue formulations

• Glass houses? — 2022-12-16
• School houses? — 2021-11-11
• Features of many doctor's office waiting rooms — 2017-01-07
• Some zoo attractions — 2013-03-08
• See 33-Down — 2008-02-09
• Sites for small schools — 2006-11-11
• Places for fish — 2006-05-07
• Tanks — 2003-08-30
• Tanks for watching? — 2002-06-07
• Bubble sites — 2000-02-05
• Sites with little privacy — 1999-06-25
• Water worlds — 1998-10-23
• Some public exhibits — 1998-05-16
• Glass houses? — 1995-02-03
• Locales for swordtails — 1995-01-29
• Swimming sites — 1995-01-05