Twinning celebrated in Igbo Ora, Nigeria's 'twin capital' With the highest concentration of twins in Nigeria, Igbo-Ora is the nation's self-proclaimed twin capital. According to popular belief, this is due to the diet of the women of the region, and in particular "ilasa", a dish made from yam and gombola leaf soup. For the second time in its history, the city is organizing the "Twin Festival", where twins from Igbo-Ora and elsewhere gather to celebrate their existence. IMAGES AND SOUNDBITES