© Istockphoto|Amman, Giordania 

© Istockphoto| Royal Opera House, Muscat, Oman 

© Istockphoto|Tempio Wat Rong Khun, Chiang Rai, Thailandia

© Istockphoto| Taj Mahal, Agra, India 

© Istockphoto| Moschea dello Sceicco Zayed, Abu Dhabi, Emirati Arabi

© Istockphoto| One World Trade Center Transportation Hub, Manhattan, New York

© Istockphoto| Stavanger, Norvegia

© Istockphoto| Thorn, Paesi Bassi 

© Istockphoto| Freudenberg, Germania 

© Istockphoto| Biblioteca Civica, Stoccarda