This is a Moorish city, full of Calatayud attractions and monuments, that's home to an outstanding fortified Arabian enclosure, one of the main places to visit in Calatayud. Both the castle and the walls are of Arabian style and receive many visitors each day. This fortification consists of five castles linked by walls coming down the ravines. At the top is the Castillo Mayor or Ayyub and the Torre Mocha. Below are Doña Martina Castle, the Castillo del Reloj and the Castillo de la Peña, all attractions in Calatayud of great importance that you must see. Other things to see in Calatayud are the Sanctuary of the Virgen de la Peña, Terrer Gate, dating from the second half of the 16th century, and the College of Santa Maria Maggiore, a World Heritage Site since 2001. It's also a rich land full of archaeological sites so other Calatayud activities include visiting the Roman ruins of Bílbilis or the Celtiberian site of Valdeherrera. And if you're wondering what to do in Calatayud to really get to know the city, the best time to travel there is during the festivities in honor of San Roque in August. If you're traveling during these festivities and are looking for stuff to do in Calatayud, then don't worry, you'll find a number of scheduled things to do in Calatayud at that time.