Exploring Saint Francis Church, tilt up shot of facade and ornamental reliefs

porto portugal tilt up shot gothic saint francis church facade reliefs stairs ornamental unesco world heritage history architecture elegance preservation ornamental details historical site european heritage religious architecture cultural heritage portuguese culture portos attractions gothic architecture artistic reliefs religious symbols staircase design architectural details heritage conservation preserving history tourist destination travel ornate facade ancient church historic landmarks porto sightseeing religious building portos historic center church exterior sacred place ornate stairs gothic revival religious art travel photography unesco recognition cultural significance architectural marvel european history franciscan order baroque