TODAY’S LIVING BEST BETS

HOLIDAY

The 39th annual L.A. County Holiday Celebration offers six hours of free music, dance and theater today at the Music Center in L.A. (213) 974-1396.

MUSEUM

Celebrate the two-wheeler with “Bicycles: History, Beauty, Fantasy” at UCLA’s Fowler Museum in Westwood through Jan. 3. (310) 825-4361.

FASHION

Take a free guided trolley tour of the Fashion District at 10 a.m., 11 a.m. or noon Saturday. For reservations, call (213) 488-1153.

FAMILY

Children can learn the lost art of writing thank-you notes all day Saturday and Sunday at the Kidspace Museum in Pasadena. (626) 449-9144.

ART

Tour “Visions and Values: Jewish Life From Antiquity to America” at the Skirball Cultural Center in L.A. on Friday. (310) 440-4500.