Historical clue formulations

• Garden pavilion — 2023-05-23
• Feature of some gardens — 2016-05-19
• Where Maria and the Captain have their first kiss in "The Sound of Music" — 2014-03-20
• Shelter that's often octagonal — 2011-04-24
• Site of many an outdoor wedding — 2009-02-01
• Shady spot in a 52-Down — 2008-09-12
• Popular setting for a wedding — 2008-01-15
• Shady resting place — 2005-07-24
• ... — 2004-01-15
• Garden structure — 2002-04-08
• Park feature — 2000-02-10
• Garden shelter — 1999-10-26
• Park structure — 1998-08-12
• Elegant garden feature — 1997-10-31
• Summerhouse — 1996-04-14
• Shady spot in the park — 1994-08-20