Student or Learner
1) Why 'at the top of the hill or mountain or page?
2) Why 'on top of the bus or train or world'?
Can someone please explain the difference?
Thanks and Regards,
This is an interesting question.
At always denotes a specific point\duration\place
On is something above the object.
On the table
On the bus
May be because Mountains and Hills have peak, it is said to be "at the top"
Bus and Train have a flat roof.
This is my thought. Let's see what an expert has to say.