The Neoclassical building used to be the seat of the State Government. Nowadays it houses a museum with a rather limited collection.
Wikipedia http://pt.wikipedia.org/wiki/Espa%C3%A7o_Cultural_Pal%C3%A1cio_Potengi
Phone +55 84 3211 7096
Address 152 Praça André de Albuquerque, Natal 59025-580, Brazil
Coordinates -5°47'5.978" N -35°12'30.409" E