0 Euro Torre dos Clérigos

The zero-euro souvenir note program, administered through licensed distributors under the EuroSouvenir brand, operates with full ECB authorization but no legal tender status — these are commemorative items sold at a markup directly to tourists, functioning as a self-funding heritage promotion scheme with a glossy monetary skin. Oberthur Fiduciaire produces them to genuine security-note standards, including UV-reactive inks and microprinting, which is either admirably thorough or quietly ironic depending on your view.

The Torre dos Clérigos in Porto, designed by Nicolau Nasoni and completed in 1763, held the title of tallest building in Portugal for over a century. That detail alone justifies its mint treatment.