The 22-year-old German, who has not been publicly named, is set to be hit with a huge fine after he was accused of scaling the 16th century monument, causing an estimated £4,272 worth of damage
CCTV shows the man quickly making his way over to the fountain in Florence before crossing the water and clambering onto the statue to pose for the picture.
The two suspects, named only as A.J. Jr., 29, and B.M.E., 23, allegedly spray painted the graffiti on the Palladian Basilica in Vicenza, a UNESCO World Heritage Site that was first built in the 1440s.
The girl from Switzerland is visiting Rome with her family and has been caught carving her initial into the popular sight on Friday, July 14, according to Italian media reports.