Belém’s central park is called Praça da República, and several major avenues converge there. West of the plaza, and closer to the water, is Comércio, a busy commercial district whose narrow streets have a gritty vitality during the day, but turn lonely and dodgy at night. Further south is Cidade Velha (Old City), where Belém’s best museums are located. East of the center is an upscale neighborhood called Nazaré, with cafes, a few hotels and sights including the zoo and the basilica.