Here's a wikipedia list of several:
Underground Atlanta, Atlanta, Georgia
Harborplace, Baltimore, Maryland
Faneuil Hall, Boston, Massachusetts
Navy Pier, Chicago, Illinois
Aloha Tower Marketplace, Honolulu, Hawaii
Jacksonville Landing, Jacksonville, Florida
The Grove at Farmers Market, Los Angeles, California
Hollywood and Highland, Los Angeles, California
Bayside Marketplace, Miami, Florida
Jackson Brewery, New Orleans, Louisiana
Riverwalk, New Orleans, Louisiana
South Street Seaport, New York City
Waterside, Norfolk, Virginia
Jack London Square, Oakland, California
Arizona Center, Phoenix, Arizona
Station Square, Pittsburgh, Pennsylvania
Westfield Horton Plaza, San Diego, California
Ghirardelli Square, San Francisco, California
Pier 39, San Francisco, California
St. Louis Union Station, St. Louis, Missouri
Union Station (Washington, D.C.), Washington, D.C.
Tower City Center. Cleveland, Ohio
Water Street Pavilion, Flint, Michigan
Union Station, Indianapolis, Indiana
Portside, Toledo, Ohio
Erie Street Market, Toledo, OH
Sixth Street Festival Marketplace, Richmond, Virginia
Festival Market, Lexington, Kentucky
Saint Anthony Main, Minneapolis, Minnesota
Bandana Square, Saint Paul, Minnesota
Cray Plaza, Saint Paul, Minnesota
West End Marketplace, Dallas, Texas
http://en.wikipedia.org/wiki/Festival_marketplace