A Russian tourist has been fined 20,000 Euros (£15,829) for engraving a 10-inch tall letter 'K' on a wall of the Colosseum.
The 42-year-old was caught using a pointed stone to carve the letter by a guard at the landmark in Rome, Italy.
He was fined and handed a suspended four-year jail sentence on Saturday.
The incident was the fifth act of vandalism at the Colosseum this year.
Officials have complained about a lack of staff to properly monitor the city's landmarks - with increasing numbers of visitors seeking to leave their mark on them.