I was reading a Jim Hill artcile about DisneySea attractions that weren't built and one seemed like it could work at DCA. Here is part of the article:
The enticement of luxurious transaltantic ocean travel forms the story of the S.S. Columbia Showcase of Nautical Marvels, an all-new attraction located in the nautical icon of American Waterfront. Beginning in an enclosed foyer and continuing through a queue area "gallery," Guests view a series of witty paintings that tantalize prospective passengers to book passage on the "maiden" voyage of the S.S. Columbia. The Guests are promised that to do so would ensure that they experience the safest, fastest, and, above all, the most comfortable Atlantic crossing heretofore available. Of all the latest in nautical comfort technology featured in the sales gallery, the grandest of all are the dual "Gyroscopically-Stabilized Self-Leveling Anti-Turbulence Lounges." It is this very technology that the Guest is going to experience firsthand by participating in an actual "demonstration." Each of the two lounges carries 40 Guests and, guided by a gyroscope that "controls" the self-leveling action, promises to deliver a safe, relaxing experience free of the usual personal discomforts of an ocean voyage.
Guests receive a surprise when the gyroscope seemingly runs amuck and their cabin begins spinning, at times to 360 degrees in either direction. When the cabin subfloor appears to move overhead and the ceiling and skylights disappear, Guests hold on to their wits and hope that the promised comfort kicks in -- and quickly.
I thought it could have a Queen Mary theme instead of S.S. Columbia and be built on the other side of Cali. Screamin' in the Timon Lot