Where did the events of the Titanic take place?
On deck.
Or maybe you mean that the ship left Southampton in England, picked up in Cherbourg in France, then picked up in Queenstown (now named Cobh) in Ireland’s County Cork and sailed across the North Atlantic towards New York. Cue iceberg.
In 1985 it was finally located somewhere south-east of Newfoundland which was about twelve miles from where people originally thought it was.
To be more specific it’s currently located at 41°43?55?N, 49°56?45?W