1.   Others slumped on the cobblestone plaza, holding their stomachs and heads in pain.

2.   In the chaos, sobbing survivors collapsed on the cobblestone plaza or ran in panic, crushing others beneath them.

3.   Old Spanish castles, cobblestone plazas, libraries and schoolrooms across the Cuban capital have been transformed into galleries for the Biennial of Havana art festival.

4.   The sloping cobblestone plaza outside accommodates a motley crowd of street performers, musicians, mimes, caricaturists and wine-swigging drifters who congregate on sunny days.