On the outskirts of the Bois de Vincennes, at the eastern edges of the city, lies a garden of ghosts. You wouldn’t know it, however; few travel guides will send you here, and even once you alight at the suburban Nogent-sur-Marne RER station, it’s still easy to miss. This remnant of history is tucked away … More Le Jardin d’Agronomie tropicale