Monument to Alfonso XII in the pond of Buen Retiro Park. Buen Retiro; Lake; Retiro; alfonso XII; architecture; beauty; boats; building; bush; capital; city; cityscape; color; destination; europe; european; fresh; garden; green; heritage; historic; historical; history; landmark; leisure; madrid; monument; nature; old; outdoors; palace; park; place; pond; row; royal; royal palace; sculpture; sightseeing; sky; spain; spanish; tourism; tourist; travel; tree; urban; visit; water;