Monumento di Santa Caterina da Siena

The Monument of Saint Catherine of Siena in Piazza Pia is celebrated for creating a remarkable optical illusion known as 'the eternal kiss.' When viewed from the right angle down Via della Conciliazione, the statue aligns seamlessly with the dome of St. Peter's Basilica, making it appear as though she is gently kissing it.

Commenters are highly impressed by the creative perspective trick and eager to capture the photo for themselves. Many travelers ask for exact directions to the spot, while others note that you might encounter long lines of people waiting to take the same picture.