Saint Nicolas Tower : This military building facing the ocean symbolises the power and wealth of La Rochelle. Both a true keep, 42 metres high, and a residence, it was constructed around a labyrinth of staircases and corridors built within its walls.
Chain Tower : From this Tower, entry to the old port, movement of ships was surveyed and taxes collected. New exhibition from 1st July 2018 : "Tous à la plage" : a panorama of the seaside towns from the origins to the present day.
Lantern Tower : Last Medieval lighthouse on the Atlantic coast. It is 55 metres high, surmouted by an octagonal Gothic spire. It contains more than 600 graffiti sculptured by prisoners for 3 centuries.