Aspring can be founded when the ground dips nelow the water table

Explanation:

The groundwater found below the water table comes from precipitation that has seeped through surface soil. Springs are formed where the water table naturally meets the land surface, causing groundwater to flow from the surface and eventually into a stream, river, or lak

Colosseum, Italy. ...

The Colosseum or Coliseum, also known as the Flavian Amphitheater, is an oval amphitheater in the center of the city of Rome, Italy. Built of travertine limestone, tough, and brick-faced concrete, it was the largest amphitheater ever built at the time and held 50,000 to 80,000 spectators.