Historical clue formulations

• Mythical land of untold riches — 2025-05-30
• Sir Walter Raleigh's goal — 2022-03-02
• Poe poem about a mythical quest — 2020-04-05
• Fictional place that lent its name to a classic Cadillac — 2020-01-31
• Mythical city of gold — 2019-10-29
• Fabled city of wealth sought by conquistadors — 2017-01-23
• Poe poem that begins "Gaily bedight, / A gallant knight" — 2015-07-03
• Conquistador's quest — 2013-06-06
• The first complete navigation of the Amazon was in search of this — 2009-11-07
• Poe poem about a knight's lifelong quest — 2009-02-13
• Conquistador's quest — 2005-04-07
• Fabled New World city — 2004-09-20
• 1967 John Wayne film — 2001-03-31
• Get-rich-quick place — 1998-12-18
• Pizarro's quest — 1997-08-28
• "The Gilded One" of myth — 1996-09-13
• Object of a onetime search — 1995-10-22
• Walter Raleigh quest — 1994-01-01