The South Tower (Steffl). Soaring 136 meters high, this 14th-century Gothic spire acts as an immense solar needle pointing to the zenith.
The Glazed Roof Tiles. 230,000 colored glazed tiles forming the double-headed Habsburg Imperial Eagle.
Each carries its full hermetic decipherment and an observational protocol — where to stand, when, and what to watch for — in the Vienna field codex.
Or read the complete Florence codex free first.