Cities of the Underworld is a video series that goes beyond the normal touristy spots of a city to the foundations (under ground) and explores catacombs, crypts and other fascinating secrets. In Season 1, we are shown places such as Scotland's Sin City (Edinburgh), Hitler's Underground Lair (Berlin), Rome's Catacombs, London's Lost Cities, Dracula's Underground (Bucharest), Beneath Vesuvius (Naples, Italy) and lot others. In 79 AD, Mount Vesuvius erupted, sending ash miles away and completely covering Pompeii. The eruption lasted over 24 hours reaching temperatures up to 1300 degrees Fahrenheit. Gas or smoke suffocated most of the people. In a lot of places, the volcanic ash got rained upon and created massive mudslides. One marketplace was found twenty feet below Naples because of the mudslide. The ash-mud preserved a lot of historical sites, which is great for archaeologists today because they can dig into the layers and see what life was like during that time. Pompeii is famous for the people frozen in time by ash. Tufa bricks (made of volcanic rock-ash) were strong enough to cut and be used for building projects. People built over the previous sites (covered by mud/ash). One example was San Gudioso. Underneath the ground were fourth century catacombs carved out of the tufa and niches carved into the walls for the crypts. On top of this, a church was built in the 16th century.
There is also the Garden of Oranges(Giardino degli Aranci or Parco Savello) beside the remains of the Savelli Castle built by Alberico II and later given to the Dominican Order as a monastery. Legend says Saint Dominic planted the infamous orange tree that still grows there today and Saint Catherine of Siena used one of its oranges to make candied fruit for Pope Urban VI.
During the middle ages it was occupied by churches or monasteries.
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