There are a lot of seriously weird (in a good way) places to drink coffee in Havana, but Café Fortuna Joe stands alone, mainly because of its original seating. Forget the mismatched chairs so beloved by hipsters elsewhere; Fortuna's places to park yourself include a horse carriage, an old car, a bed and a cushioned toilet – no kidding.
The coffee and service are excellent, and it also serves fine desserts and baguettes.
There's another, smaller Café Fortuna nearby, at Av 3 and Calle 28.