The Queen Mary in Long Beach, CA.
Bigger & faster than the "Titanic" the "Queen Mary" made her maiden voyage in 1936 hosting some well known passengers across the Atlantic such as Duke and Duchess of Windsor, Greta Garbo, Clark Gable, David Niven, Mary Pickford, George & Ira Gershwin, and Sir Winston Churchill just to name a few.
When World War 2 broke out it became a troop ship, it was painted grey & called rather prophetically "The Grey Ghost".
Now for the juicy part: in it's long history it has supposedly been the site of over 49 reported deaths & has been said to be one the most haunted attractions with at least 150 known spirits that must have acquired a pretty hefty bill by now lol.
I will say it is very well preserved & it really makes you feel like you've time traveled back to the early 20th century. I remember doing a little exploring late at night, when most of the guests were asleep. There was WW2 era music being played throughout the ship & it just about gave me the impression that I was the one haunting the place instead. There is definitely a treasure trove of energy imprints, an extraordinary place.
The Queen Mary
Long Beach, California