Fort Jesus is the heaviest piece of history on the East African coast — a stone bastion thrown up at the southern end of Mombasa Island in 1593, designed by the Italian architect Giovanni Battista Cairati on a plan shaped like a human body. The Portuguese built it to control the spice route between the Red Sea and Goa, and the next two centuries of Indian Ocean history can be read in its walls: Portuguese coats of arms cut into the gateway, Arab graffiti scratched into the inner rooms, British colonial cells repurposed into a museum.
The fort itself is dramatic enough — coral rag walls thirty metres thick in places, a parade ground open to the sky, bastions named after the saints — but what makes it worth the entry fee is the museum inside, which displays Ming porcelain hauled up from a wrecked Portuguese trader, Swahili jewellery, and ship's cannon. Climb the western rampart at sunset for the best view over the dhow harbour and the rooftops of Old Town. UNESCO listed the fort in 2011.