Italy’s Culture Minister Alessandro Giuli ordered the one-day closure of the Colosseum on Wednesday as a mark of respect after a worker was killed overnight in an accident. Andrea Moretti, a 22-year-old technician, died after falling several metres while installing a new lighting system inside the ancient Roman arena. Built 2,000 years ago, the Colosseum was the biggest amphitheatre in the Roman Empire, used to host gladiator fights, executions and animal hunts. It is Italy’s most visited...