Constantine (Arabic: قسنطينة, Qusanṭīnah, also spelled Qasentina or Kasantina) is the capital of Constantine Province in north-eastern Algeria. During Roman times it was called Cirta and was renamed "Constantina" in honor of emperor Constantine the Great. It was the capital of the same-named French département until 1962. Slightly inland, it is about 80 kilometres (50 miles) from the Mediterranean coast, on the banks of the Rhumel river.
Regarded as the capital of eastern Algeria and the centre of its region, Constantine has a population of 448,374 (1,000,000 with the agglomeration), making it the third largest city in the country after Algiers and Oran. There are museums and important historical sites around the city (one of the most beautiful is the Palais du Bey, in the casbah). It is often referred to as the "City of Bridges" due to the numerous picturesque bridges connecting the mountains the city is built on.
The city is framed by a deep ravine and has a dramatic appearance. In 1911, Baedeker described it as "resembling the Kasba of Algiers, the picturesque charm of which has so far been marred by the construction of but a few new streets."
- Musée National Cirta, previously Gustave Mercier Museum (displays ancient and modern Algerian art)
- Abd al Hamid Ben Badis Mosque
- The Casbah
- Emir Abd al-Qadir University and Mosque
- Soumma Mausoleum
- Massinissa's Mausoleum
- The Palace of Ahmed Bey
- Ruins of the Antonian Roman aqueduct
- Ben Abdelmalek Stadium