According to museum website "As soon as we receive your Booking request, your tickets will be booked. The original voucher will be emailed to the email address you provided, so be sure to insert it correctly. The original voucher is the only recognized document." 据博物馆网站: "一旦我们收到您的预订请求,您的票将被预定。原票将通过电子邮件发送到您提供的电子邮件地址,要打印它并将它正确插入进口。原票是唯一承认的文件. "http://www.rome-museum.com/Booking-vatican-tickets.php