Published in the Special Issue on Tourism and the Place of Memory of the International Journal of Tourism Anthropology (2016, Vol. 5 no. 3/4), this text by Oriol López (EUROM) exposes the experience of this guided tour in Barcelona. The route is specifically addressed to explain the connections of the city with an awkward past unknown by many locals and visitors: the role of slave traders in the development of the city. Its aim is showing the traces left by the slave trade and colonial fortunes in Barcelona, such as distinguished buildings, monuments and street names. Ultimately, the tour aims to contribute to the process of public recognition of those groups affected by slavery in the past.