Constantine or Qustantînah is a city and wilaya in north-east Algeria, slightly inland. It has a population of about 350,000, making it the third largest city in the country (after Algiers and Oran). It is named for Constantine I of the Roman Empire, who caused the city to be rebuilt; previously, its name had been Cirta. The city is framed by a deep ravine and has a dramatic appearance. The city is very picturesque with a number of bridges and a viaduct crossing the ravine. Constantine is also home to the tomb of the Algerian national hero Abd al-Qadir al-Jazairi.