Perched on a rocky promontory overlooking the Vltava, Vyšehrad ('Upper Castle') is Prague's oldest mythical citadel. The Romanesque Rotunda of St. Martin (11th century) and the Devil's Column (Čertův Sloup) mark ancient telluric energy lines where pagan Slavic priestesses conducted sky-watching rites.
The full decipherment and its observational protocol — where to stand, when, and what to watch for — are in the Prague field codex.
Or read the complete Florence codex free first.