Is Puzzler Tower a real place? What about Car Talk Plaza?

On a show I listened to today, a letter was read from a listener who was upset that he took his family to Our Fair City and asked a cop for directions to Puzzler Tower. He didn’t know where that was. Then the man asked the cop about Car Talk Plaza. He didn’t know that either. Finally, he told the cop the names of the guys on the show. He knew them, and he laughed.

Location in the third half of the show!

Car Talk Plaza in Harvard Square is an actual place. Building has a sort of tower-like appearance.