''Star Trek'' has a large following among fans (known as "Trekkies"), with books, magazines, websites, and conventions. Tri-dimensional [[chess]] was one of many thought-provoking innovations introduced by ''Star Trek''. Some memorabilia from Star Trek are valuable today. | ''Star Trek'' has a large following among fans (known as "Trekkies"), with books, magazines, websites, and conventions. Tri-dimensional [[chess]] was one of many thought-provoking innovations introduced by ''Star Trek''. Some memorabilia from Star Trek are valuable today. |