NEW YORK (AP) — Artifacts at the National September 11 Memorial Museum include a mangled piece of the antenna from atop the trade center.
There's also a fire truck with its cab shorn off.
Galleries plunge visitors into the feeling of the chaos that occurred on Sept. 11.
There are fragments of planes; a set of keys to the trade center; and a teddy bear left at one of the impromptu memorials.
There are dust-covered shoes of those who fled the skyscrapers' collapse.
Visitors also will hear emergency radio transmissions and office workers calling loved ones.
There's even a recording of an astronaut solemnly describing the smoke plume from the International Space Station.
Sprinkled in are snippets about the 19 hijackers.
Their photos are on an inconspicuous panel.