The ancient Egyptian Pharos (lighthouse) of Alexandria, one of the ancient seven worldwonders, originally built in the 3rd century BC.
I offer this building blueprint in two versions: one is the standalone lighthouse, the other is with its courtyard.
I also do warn for the immense size of the construction. The standalone Pharos is 60x76 blocks and has a total height of 194 blocks. The Pharos & Courtyard version spans 180x180 blocks with a height of 194 blocks.