If you’re heading to West Africa to unearth lost treasure, look no further than Benin . This club-shaped country, on the western edge of Nigeria, was once one of the most powerful empires in Africa – the Dahomey kingdom. The ruins of the Dahomeyans’ palaces and temples can be seen in Abomey, while Ouidah is a poignant reminder of where their riches came from: the slave trade. The Route d’Esclaves in Ouidah was the last walk on African soil for slaves bound for Brazil and the Caribbean. Museums here and in Porto Novo, Benin’s lagoon-side capital, examine the resultant Afro-Brazilian society and culture. Cotonou, on the other hand, is urban Africa at its most frazzling and polluted - but is not without its own charms, a lively nightlife and good shopping being a couple of them.