Faro's tiny and exquisite Italianate theatre hosts drama, music and dance performances. Adapted into a theatre in 1874 (from a building dating back to 1603), it was once the Jesuit Colégio de Santiago Maior. Check its website or ask the tourist office for a list of what’s on; you can buy tickets online (though you'll need to print them).
Teatro Lethes
Faro