When you look at Trevi's fountain you admire the scenic beauty of the whole monument, the water effects, the white marbles which evoke the majesty of Baroque Rome and won't probably notice an ornamental vase placed to the right of the fountain itself. It seems that it has been put there by Nicola Salvi, the author of the project of the fountain in 1733. In front of the vase there was a barber shop and the barber while the works were ongoing criticised the project: the fountain wasn't beautiful at all! Nicola Salvi, sick and tired of the critics, created a vase and he placed it just in front of the barber shop so to prevent the barber from criticising his work again! The barber shop isn't there anymore but the vase still is.