Help with a riddle, please?

[Tonyblack]

Are you going to do another, Tony?

Maybe. I haven't got any plans, but who knows.

[LilMaibe]

Well, maybe pooh will do his puzzles again too, one day. Who knows (except for pooh)

[Toothy]

OK, Smack, how did it go and what was the answer?

[Who's Wee Dug]

<Rich Brook is a reference to the Reichenbach Falls, I'd guess, and some tall building may be involved (Chrysler?) because >
Toothy the tallest building would be the Tower of Art where all the Wizard's chased after the the Octavo as it went through up the roof in the Light Fantastic.

[Tonyblack]

<Rich Brook is a reference to the Reichenbach Falls, I'd guess, and some tall building may be involved (Chrysler?) because >
Toothy the tallest building would be the Tower of Art where all the Wizard's chased after the the Octavo as it went through up the roof in the Light Fantastic.

I think that the quiz is looking for a Roundworld location, it just happened to have a Discworld clue.

[Who's Wee Dug]

Maybe a clue in that T.o. A. large art building or similar in the vicinity.