Buon fresco (painting on wet plaster) is the technique of Giotto, Masaccio, and Michelangelo. In Florence, you can learn it in a 3-hour workshop.
Plan this experience →Workshops: The Studio Art Centers International (SACI, €120–180/day workshop), Accademia del Giglio (€80–150/half-day), Arte del Funzionamento (€100/3h). What you do: prepare the intonaco (wet plaster layer), transfer your design (spolvero/pouncing technique or sinopia drawing), paint with natural earth pigments while the plaster is still damp. The pigments become part of the wall as it dries — the same chemical bond that preserved Pompeii’s frescoes. Take home: your fresco on a plaster tile (30x30cm).