Silk was produced in the Alpujarra mountain range. Mules were used to transport this raw material to Granada where it was then converted into silk thread or cloth and exported. This market was called Alcaiceria , (or al-kaysar-ia) meaning the House of Caesar or Belonging to Ceasar as it was Emperor Justinian who granted the Moors the permission to sell silk. The original market, right next to the Cathedral, caught fire in the 1843. It was rebuilt within two years as it was a major international commercial center. You can still see some old stucco work, arches and several zellij tiles of moorish origin here. Nowadays this market is more of a tourist trap but you can visit it as a historical site. At times you can get lucky and find some great bargains here.