Fortress of Louisbourg built
1713 CE.
Shown on the map at 45.892°, -59.985°.
The Fortress of Louisbourg (French: Forteresse de Louisbourg) is a tourist attraction as a National Historic Site and the location of a one-quarter partial reconstruction of an 18th-century French fortress at Louisbourg on Cape Breton Island, Nova Scotia. Its two sieges, especially that of 1758, were turning points in the Anglo-French struggle for what today is Canada. The original settlement was founded in 1713 by settlers from Terre-Neuve, and initially called Havre à l'Anglois. Subsequently, the fishing port grew to become a major commercial port and a strongly defended fortress. The fortifications eventually surrounded the town. The walls were constructed mainly between 1720 and 1740. By the mid-1740s Louisbourg, named for Louis XIV of France, was one of the most extensive (and expensive) European fortifications constructed in North America. The site was supported by two smaller garrisons on Île Royale located at present-day St. Peter's and Englishtown.
Text from the Wikipedia article Fortress of Louisbourg, licensed CC BY-SA 4.0.