Everyone watched her as if it was the most fascinating thing they had ever seen.
Breathing is a fascinating thing to watch in a woman.
I think the fascinating thing here is to start from the bottom and read his thought process.
To him these were the most fascinating things in the world.
The most fascinating thing about reading the novel is trying to work it out yourself!
That's one of the fascinating things about the book that I haven't mentioned so far.
"There are such fascinating things to be done with this, for instance."
She looked over her shoulder at him and saw a fascinating thing.
The hand was a fascinating thing to watch: It moved of itself.
And our readers still find this whole thing very fascinating.