Built by the Portuguese between 1593 and 1596 and designed by Giovanni Battista Cairati order of King Philip I of Portugal (King Philip II of Spain), in order to protect the port of Mombasa, Fort Jesus is one of the finest and best preserved examples of sixteenth-century Portuguese military fortifications. The organization and reflect the shape of the Renaissance ideal that the perfect proportion and geometry harmonious are found in the human body. The strong, in fact, seen from above, has the shape of a human figure, with a jumper in place of the head and four bastions in place of the limbs. The Fort Jesus is named for the fact that the Portuguese fleet sailed under the flag of the Order of Christ and was the first European-style fortress to be built outside Europe, it was built to withstand cannon fire, became so vital to the defense of Mombasa and the surrounding areas in particular against the incessant incursions of the Ottomans. During the British colonial period, the fort became a prison, and then become, by 1958, a historical monument and home to many research programs and is not a case that was recently listed among the UNESCO World Heritage Sites. Popular tourist hotspot at the local level, the fort, which now houses a museum, is also visited by foreigners and is a must for travelers to visit in Mombasa.