The artists have been adding new areas to the sculpture all summer, so it is slowly changing. They plan to continue working on it until the end of October when it will be taken apart. The sculpture is made up of small individual parts. They say it shows the interconnected dependency that all humans have on each other.

The bamboo is a natural product harvested in the states of Georgia and South Carolina. The artists chose bamboo because it is light, strong and can survive all kinds of weather. They have compared the pathways on the sculpture to the arteries in the human body.

Visitors can experience Big Bambu in two ways. They can walk under and around the sculpture on the Roof Garden. Or, they can make plans for a guided visit and enter into the sculpture and walk around on its pathways.

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Climbing into Big Bambu is like entering a magical tree-house. The sculpture is exciting because it invites visitors to explore and experience art physically as well as mentally. And, this sculpture permits visitors to climb up into the sky to enjoy an extraordinary -- and temporary -- view of New York City.

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Mall of America

DOUG JOHNSON:Our listener question this week comes from China. Margaret wants to know about the most popular shopping place in America.

The largest and most popular shopping mall in the United States is the Mall of America. It is in Bloomington, Minnesota, in the north-central part of the country near the twin cities of Minneapolis and Saint Paul. It opened in nineteen ninety-two and cost six hundred fifty million dollars to build.