Join Hal on the Thirty-fourth Annual Tour of Architectural and Historic Sites (rides are about 15-30 minutes with stops to learn about various sites in and around Boston).

Meet Hal S in front of Trinity Church in Copley Square.

Bring a bicycle with a light and wear something reflective; helmet required. Bring a spare inner tube that fits your tires.

Bring something for pot luck breakfast Sunday in Christopher Columbus Park.

Commemorative T-shirts available.

Sponsored by the Back Bay Midnight Pedalers, for information call 617-522-0259.