1. Global heritage assemblages : toward an anthropology of the contemporary -- 2. Diagnosis : modern architectural heritage as an anthropological problem -- 3. A pathway -- 4. Analysis : global heritage assemblages and modern architecture in Africa -- 5. Modern nostalgia : asserting politics of sovereignty and security in Asmara, Washington and Brussels -- 6. Modern trophy : contesting technologies of authenticity and value in Niamey, Brazzaville, Paris, New York and Venice -- 7. Many words for modern : negotiating ethics of legitimacy and responsibility in Dar es Salaam, Utrecht, Amsterdam and Accra -- 8. Synthesis : contemporary politics, technologies and ethics to the rescue of modernity