I am sometimes old and sometimes sharp, I am often rich and fine and I absolutely love to have with me a nice..........

Question

I may be modern, and sometimes fine,
If you place me after a pop, I can be quite divine.

A look at me might raise a brow,
Some time ago, you might have found me after thou.

From a fortune to very little my value can span,
But this is not important, for I still am what I am.

People go to special places to come and look at me,
But I am all around you, just use your eyes, and see.

Answer 1

The ans is -
Cheese