Deep below the bustling city streets of Naples, Italy, researchers used futuristic sounding technology to reveal an ancient Greek tomb that archaeologists for years knew existed but have been unable to access, according to Live Science.

The area currently known as Naples was first called Cumae, the first ancient Greek colony in Italy. Around 650 BCE the settlement was renamed Neapolis, or New City, and was of the most important and powerful colonies held by the Greeks, with its own forum, a bevy of temples, and multiple underground catacombs.