Federal Hall

No, because this is reality and not the metal gear solid 2 video game !!!

Yes

Yes, it's free

Doubt it

We were there about an hour, but some of the displays were closed at the time we were there, so we may have stayed longer.

Hello. I am Iranian to America

Because that's where the financial district of New York and Wall Street is

I think it's probably because there aren't enough security staff on hand to supervise the crowds.

The statue of George Washington in front steps In 1882, John Quincy Adams Ward's bronze George Washington statue was erected on its front steps, marking the approximate site where he was inaugurated as President in the former structure

No, walk right on in. No fees either.

This is not the stock exchange, but yes, if you want to visit the NYSE you need specific permission.