If Satoshi is for Bitcoin, Guastavino is for the Timbrel Vault
The method of Timbrel vaulting was perfected in the 14th century around the Mediterranean, although its precise origins date back to Nuba and to the cave. The timbrel vault is also known as a "masonry vault", "Catalan vault", "tiled vault", "laminated vault", "flat vault" and "layered vault" (derived from Spanish, French, Italian and Catalonian descriptions).

The complex science behind the flat arch ;)

Guastavino proudly standing on a centenary arch

Oyster Bar, New York

Valencia
use imgsafe.org
instagram blocks hotlinking by default. just like imgur here
Thanks Bro )
no problem :)
nice photos btw!
Just learned yesterday, I hope it is useful for you
https://steemit.com/steem/@vijaychaudhary09/steemit-tips-part-1-how-to-take-pictures-from-instagram-for-your-post-easily