51.   The tour begins this weekend with Bullnanza, scheduled Friday and Saturday at the Lazy E Arena in Guthrie, Okla.

52.   The walking tour begins at the oldest building in the quarter, the William Heath Davis House on the corner of Fourth and Island avenues.

53.   The tour begins at the Riverside Terrace entrance, a stunning waterfront platform overlooking the harbor.

54.   The tour begins in September.

55.   Their tour began today at the University of Wisconsin-Milwaukee.

56.   The walking tour begins at North Eighth Street and Second Avenue at the Heritage House, a bed-and-breakfast.

57.   Tour begins at Boston Common Visitor Center.

58.   Tours begin at the Boston Common Visitors Center.

59.   Tickets must be picked up a half-hour before tours begin.

60.   Tours begin at the Bowfin Submarine Memorial.