Subway on the Water?
The trip took roughly 3.5 hours for me, taking me from Astoria, down through Manhattan, through Brooklyn, and finally into Far Rockaway, where the scenery suddenly changes to that of a run down amusement park complete with rusty railings, fake looking buildings on stilts, and waterways.
Amazingly, the subway not only becomes a transway (superway?), riding above the ground, it then drops down to ground level, running like an Amtrak train.
The final, and most mind boggling change of scenery comes when riding across the shallow bridges of Rockaway, as the subway car seemingly skims across the surface of the water. It was surreal.

