In May 2004 Apple remodeled The Grover (S. Calif.) retail store, installing stone flooring and wooden furniture.
Several other changes were also made, as outlined by The Professor. Here are two photos of the store that
The Professor took:

This sign is in the front window of The Grove retail store in Los Angeles.

Plastic sheeting walls off the right side of The Grove retail store in Los Angeles as remodeling is performed. It appears that the
floor is covered with wood paneling to protect the new stone flooring. Notice the glass stairway to the second floor on the left
side of the photo. The right side of the second floor is similarly walled off.