© Istockphoto|Grande Muraglia Cinese

© Istockphoto|Itchan Kala, Khiva, Uzbekistan

© Istockphoto| Istanbul, Turchia

© Istockphoto| Marrakech, Marocco 

© Istockphoto| Ávila, Spagna

© Istockphoto|Montagnana, Padova 

© Istockphoto|York, Regno Unito 

© Istockphoto| Obidòs, Portogallo

© Istockphoto|Carcassonne, Francia

© Istockphoto|Dubrovnik, Croazia