Fort Adelaide (The Citadel)
Fort Adelaide, prominently known as 'The Citadel', is a massive 19th-century stone fortress perched high atop Petite Montagne in Port Louis, Mauritius. Constructed by the British Royal Engineers between 1834 and 1840 under Governor Sir William Nicolay, the fortress was named in honor of Queen Adelaide, wife of King William IV. Uniquely designed not to repel foreign naval fleets, but to suppress potential uprisings by French colonial settlers following the British takeover and the emancipation of slaves, the fortress dominated the capital with its heavy cannons. Today, the fortress is famous for panoramic views of the capital, as well as persistent ghost stories involving phantom soldiers, marching footsteps in underground tunnels, and chilling disembodied voices.