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Photo: via Wikimedia Commons, CC BY-SA 3.0
The focus of intramuros, this was built in the 1150s / 60s in a mix of Romanesque and Gothic, replacing the cathedral at Aleth.
Saint-Malo Cathedral is a Catholic Cathedral located in Saint-Malo, Brittany, France. The church was founded in dedication to Saint Vincent of Saragossa and is a national monument of France. It was built in a mix of Romanesque and Gothic styles during the episcopacy of Jean de Châtillon (1146-1163) on the site of an ancient church founded in the 7th century. The cathedral suffered damage during World War II when the steeple toppled onto the Sacred Heart Chapel. An organ which had been built in 1893 by Louis Debierre was destroyed. On 21 May 1972, after 28 years of work, a ceremony was held to celebrate the completion of the restoration. It is a stop on the Tro Breizh, a Catholic pilgrimage that links the towns of the seven founding saints of Brittany.
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Fortress on a tidal island, built by Garangeau in the 1690s to a design by Vauban. It's accessible only when the tide is out and the French tricolor is flying.
Usine marémotrice de la Rance
The world's first large-scale tidal power station, completed in 1966. The Rance estuary has a large tidal range, driving turbines generating 240 MW. A canal lock in the west end of the dam permits the passage of vessels from the English Channel. Guided tours available, must be pre-booked.
Large walk-through aquarium with a dozen habitats.
Jacques Cartier or Jakez Karter (1491 – 1557) was born and lived in Saint-Malo. He made three expeditions to Canada (mistaking the Iroquois word kanata, "the village"), mapping the lower St Lawrence river and claiming the area for France. Initially convinced that he'd almost reached China (since his sponsor the king also needed convincing), by his last voyage he realised Canada was on a separate continent. He brought back a fabulous treasure of diamonds that turned out to be worthless pyrites, and the trading colonies he established all withered away. The museum exhibits his life and travels.