The World Trade Center mall is set to re-open, and is expected to help transform downtown Manhattan shopping.

It's also a measure of the progress made in revitalizing the area since the 9/11 attacks. Shops from H&M to John Varvatos will serve a diverse group of area residents and workers beyond Wall Street that now includes advertising and media employees.

But they'll also be catering to tourists who come to visit the National September 11 Memorial & Museum.

The new spaces let customers tap into technology, as some retailers showcase their latest ideas.

It will have more than 100 stores, with about 60 opening Tuesday and the rest by the winter holiday season.

Westfield executive Bill Hecht calls the location a "symbol of hope, opportunity, progress and perseverance."