1.   A cannon blast marked the start of the ceremony at this sprawling military base deep in the jungles of southern Colombia.

2.   His shot is accompanied by a cannon blast.

3.   The State House flies the Union Jack and Betsy Ross flags, among others, and startles commuters by opening and closing each day with a cannon blast.

4.   We follow lantern-toting guides across the moat into the fort, where a cannon blast booms through the night.

5.   The shows ended after a cannon blast blew off the hand of a participant.