Is tourism a scourge? Critics say too many people want to travel and they are destroying the places they are meant to protect. Others argue the world would be poorer without them.
UK tourist faces jail for Colosseum carving
Ivan the terrible tourist? The sightseer wrote a letter of apology to Rome's mayor. Glossary
Pompeii - A Roman town in Italy. It was buried under ash after a nearby volcano erupted. The ash preserved the town so well that today people can walk through the streets and into some buildings.
Bandits - A robber or outlaw.
Inca - A native South American people who lived in the Andes before the Spanish conquest.
Machu Picchu - An Inca city built in the Andes mountains in the 15th Century and then abandoned.
Amphitheatre - An open circular or oval building with a space for drama or sports events surrounded by seats for spectators.