The B Penthouse starts at the entry to Turn 1 at Penthouse Box 1, directly above B Stand Section 1, adjacent to A Stand. It ends halfway between Turn 1 entry and apex at Penthouse Box 25, directly above B Stand Section 25, adjacent to E Stand

Thanks to Curt Cavin for digging up following info:
Stand B - 7,250 Seats
  • Originally built in 1910
  • Current version built in 1954
  • Renovated from 2004-'04
B Penthouse - Box 21, Row B (Jeff Enger)
B Penthouse - Box 21, Row B (Jeff Enger)

B Penthouse - Box 17 Row I
B Penthouse - Box 17 Row I