Roman and Byzantine Rule: For nearly seven centuries after the death of Cleopatra, the Romans controlled Egypt (except for a short time in the 3rd century AD, when it came under the power of Queen Zenobia of Palmyra).
Curieâs location Curie can be found in one of the vaults â Vault 81. She can be found on the lowest floor of the secret part of the vault.
Around 1050 AD, people began using a different kind of vault - the groin vault. It's called a groin vault because the parts meet together in a V, like the V where your legs come together. You make a groin vault by building two barrel vaults that cross each other, so that they make an X. A groin vault can be rounded, as in Romanesque churches, or pointed, as in Gothic churches. The main advantage of the groin vault is that it takes all the weight of the roof and concentrates it on just four points at the corners of each bay (each X).