Mall of America is the largest under-one-roof shopping mall in the United States - it lost out to Edmonton, Alberta's "West Edmonton Mall" in the "world's largest" sweepstakes. There are some 4 miles of corridors within the complex of 400+ shops and department stores clustered around an indoor amusement park (fun fair) in the central courtyard.
This is, in many ways, a shrine to shopping and consumerism. You can come here and spend days wandering around, listening to local music groups -- sometimes well-known rock stars -- eating, people-watching, and maxing out your credit cards.
The place has become so popular that Northwest Airlines and Amtrak both offer package tours to the Mall, where you'll find hotels just spitting distance away, a wedding chapel, if you just have to get hitched, and "attractions" galore, among which are the following:
Camp Snoopy - an amusement park including an indoor roller-coaster
Underwater Adventures - voted #1 "shark encounter" and Minnesota's largest aquarium with over 3,000 species of sea life.
LEGO Imagination Center, a 4-storey play area for the kids with Lego bricks galore to play with.
Cereal Adventure - built by General Mills, this is a children's amusement center focused on breakfast cereal (!!)
Jillian's Hi-Life Lanes - a 12-lane bowling alley and every type of video game you care to mention.
NASCAR Silicon Motor Speedway - a VR NASCAR racetrack that is amazing to see.
The Rainforest Cafe - Eat in an amazingly real-looking tropical jungle
and the list goes on, up to and including a 14-screen megaplex movie theater.