About the "New York" casino in vegas.

[Muad_Dib]

Maybe a little macabre, but did they have a faux WTC and if so what did they do after 9/11?

[Seven]

They fall down every hour, on the hour??

[Garfield226]

From this Wikipedia article:

After the September 11, 2001 attacks, people spontaneously sent various tributes to New York-New York, especially tee-shirts from police, fire and rescue departments around the country. These were displayed for some time along the fence in front of the “Lady Liberty” replica. Eventually, they were replaced by a permanent memorial there. The facility was fortunate in that the twin towers of the World Trade Center were not among the skyscrapers depicted in its facade.

Frommer’s review mentions:

There are a few visual references to the World Trade Center at the resort – it was not a part of the faux skyline, luckily, but at this writing it pops up in photos, paintings and murals. Movingly, locals and visitors started an impromptu memorial to September 11 by leaving notes and flowers on the fence surrounding the property. The hotel decided to make it permanent, placing a glass box featuring a rotating exhibit of those same tributes. It’s at the corner of Tropicana and the Strip.