Which landmarks will you pick when the entire Old Town is a landmark in itself? Simply enjoying the ambiance in this beautiful historical part of the city should be top of your list.
The rooftop terrace has stunning vistas of central Madrid, while the interior is a hub of the arts, from music and poetry events to lectures and science exhibits.
Alongside games of football and couples in pedalos, the art galleries, buskers and 17th-century palace give El Retiro a different flavour to your average park.
Lose yourself in the Renaissance charm of Florence’s old town, where masterpieces by Brunelleschi and Giotto line up alongside cafés, gelato shops and trattorias.
Admire the craftsmanship of the Tuscan artists and architects that created this richly ornamented bell tower. Climb its staircase for glorious views of Florence.