Well the only one I can think of is the Lego store in Chicago and somtimes they don't even have it in stock.
The store is located at Arab Mall near Gate 3.
the lego store, lego website, or a toy store
A Lego museum is actually in the works at the Smithsonian. There are other unofficial museums, there is one in Chicago and another one in Ohio. The Guggenheim Store has a Lego museum exhibit.
the only store that has it is the Lego store. you can find it in a lot of malls
Yes the Lego store does in fact sale a Lego Castle kit. You will have to visit their store or go online to their website.
The Lego store in NYC is on 5th Ave.
No, the Lego store is located in Southgate mall.
No, there is no Lego store in Knoxville. Hopefully soon there will be.
According to the company's website, there are Lego Land Discovery Centers in Atlanta, Chicago, Dallas-Ft. Worth, Kansas City, and Westchester NY. There is also one in Toronto. Some people from Wisconsin have noted that they visit the center in Chicago. I enclose a link to the company website so you can get further information.
YES
At any Lego Store