Answer:
What building has the most stories?
You’ll have me at night and if you remove the first letter I denote the top, such as on a train
My love, when I gaze on thy beautiful face. Careering along, yet always in place, the thought has often come into my mind. If I ever shall see thy glorious behind.
To unravel me you need a simple key, no key that was made by locksmith's hand. But a key that only I will understand.
You can hold it without using your hands or your arms. What is it?
What is full of holes but still holds water