Colosseum
After their tour was over, they finally arrived at the world-famous Colosseum. They walked around and were just blown away by the size of the thing. They never expected it to be this large and they really wanted to remember this moment. So instead of taking a photo like normal people, they did something else.
They took out their keys and carved their names into one of the bricks of the Colosseum. After they were done, they took a picture of themselves next to it and left. But they had no idea that someone had seen them do it and were about to alert the authorities.