We spent a morning during our recent visit to NYC at the 911 Memorial. The original estimated cost of the facility was about $1 trillion but was eventually cut to $500 million. Like the Vietnam memorial the reflecting pools with all the names are soberly impressive. The new towers themselves are nice but not nearly as big as the WTC was.
Except for the ticketing area the museum is totally below ground and it is BIG. It takes several hours to just manage the path through it. I heard that it was designed by committee and since they couldn’t decide on what to put in they put everything. The cost is $24 per ticket which is pretty pricey. We were there two weeks after it opened so it was crowded. Don’t try to just show up if you want to see the museum. Get on line and buy an advanced ticket or you will likely wait for hours.