Trick-or-treaters traipsed through a Nebraska zoo and costumed marchers frolicked in New York's Greenwich Village parade, but Los Angeles' traditional Halloween street party turned into a late-night melee.

Revelers broke windows and looted stores after police closed Hollywood Boulevard Monday night to an estimated 100,000 people cruising up and down the packed street, authorities said Tuesday.Shattered glass littered the stars along the famous Hollywood Walk of Fame.

Three officers suffered minor injuries, police Sgt. Ruben Whittington said.

In New York, a group of magicians gathered Monday at the grave of magician Harry Houdini for the 62nd Halloween since Houdini's death on Oct. 31, 1926.

At 1:26 p.m. - when Houdini died - a magic wand was snapped in two. But Houdini once again failed to keep his promise to communicate from beyond the grave.

Later in the day, Batman and Robin, Sonny and Cher, and scores of other costumed characters marched through the streets in the city's annual Greenwich Village Halloween Parade.

About 250,000 people turned out for the event, police estimated.