- What You Can Expect -Secure your skip-the-line tickets to the breathtaking Siena Cathedral, a 13th-century masterpiece of Roman-Gothic architecture. Book online to save time and enjoy exclusive access when the cathedral’s magnificent marble floor is unveiled — an event that only happens on limited dates each year. Your ticket also includes entry to the Piccolomini Library, one of the site’s artistic gems.Admire the cathedral’s intricate floor, described by Giorgio Vasari as “the most beautiful and magnificent ever made.” Crafted between the 14th and 18th centuries, it features 56 marble panels created by renowned local artists using inlay and engraving techniques that demanded both precision and great expense. To preserve its beauty, the floor remains covered for most of the year.Step into the Piccolomini Library, commissioned by Cardinal Francesco Tedeschini Piccolomini and frescoed by Pinturicchio between 1503 and 1508. Its vivid frescoes, illustrating the life of Enea Silvio Piccolomini (later Pope Pius II), and its grand vaulted ceilings make it a true Renaissance treasure within the cathedral complex. - Important Info -• Your voucher grants access to the cathedral on the booked day and must be exchanged for a valid entrance ticket at the ticket office *on busy days there might be queues at the ticket office• Free tickets are available at the ticket office for children under 7, people with disabilities and one carer, residents and born in the Municipality of Siena, clergy members, licensed guides and journalists • The cathedral may experience unexpected closures due to religious services or special events • The ticket has a 24hr free cancellation policy based on the opening time of the Cathedral at 10:00 am • Dress appropriately, covering shoulders and knees, to comply with the cathedral’s dress code