Citadel of Calais
La Porte de Neptune, which provides access from the east into the Citadel of Calais | |
| Location | Calais, Pas-de-Calais, Hauts-de-France |
|---|---|
| Coordinates | 50°57′25″N 1°50′31″E / 50.95694°N 1.84194°E |
The Citadel of Calais is a fortress that was initially constructed in the 16th century on the ruins of a medieval castle dating from the 13th century and whose purpose was to defend the city of Calais.