Lantern and slaughtered priests
The Lanterne tower | Jean-Pierre Bazard / CC-BY-SA
A vestige of La Rochelle's ramparts. The construction of that 7-meters high tower began in 1445 and finished in 1476.
It's known as Lantern tower, simply because there was a big torch burning inside to guide ships in case of bad weather.
Also known as Garrot's tower and Priest's tower. Garrot refers to a machine which disarmed ships before their arrival in the harbour.
What about Priests? Some of them were massacred here during the French Revolution...