Mosque of Sidi Brahim, 14th-cen­­tu­ry, the inspi­ra­tion for 20th-cen­­tu­ry mod­ernist archi­tects such as Le Cor­busier. This oasis is 1000 years old. It is tru­ly a jew­el of Alge­ria. Its mar­ket is one of the most beau­ti­ful in the world. It is real­ly worth the detour.