>... and keeping the simplicity, but adding to the experience, the journey to and from could be circuitous, to visit various points, with a continuous commentary.... and could allow people to jump on/jump off as and whenever they chose...

Some, many, would choose to alight early and walk, to experience arriving at the monument early. The less able would stay on right to the main disembarkation point.<

Yes... the idea's beginning to sound more and more attractive.