Custom House Tower clock ticks after two weeks of silence  
The four-sided, colorful clock — one of the largest in the world - clunked alive Thursday after a rare hibernation.
(JIM DAVIS/GLOBE STAFF)

Custom House Tower clock ticks after two weeks of silence  

The four-sided, colorful clock — one of the largest in the world - clunked alive Thursday after a rare hibernation.

(JIM DAVIS/GLOBE STAFF)