one of the unique structures of igbo culture was the nsude pyramids, at the town of nsude, in abaja, northern igboland. ten pyramidal structures were built of clay/mud. the first base section was 60 ft. in circumference and 3 ft. in height. the next stack was 45 ft. in circumference. circular stacks continued, till it reached the top. the structures were temples for the god ala/uto, who was believed to reside at the top. a stick was placed at the top to represent the god's residence. the structures were laid in groups of five parallel to each other. because it was built of clay/mud like the deffufa of nubia, time has taken its toll requiring periodic reconstruction.