

MONTREAL: Spectators enjoy festivities at the 186th consecutive St. Patrick's Day parade in Montreal on March 14. Graham Hughes/The Canadian Press/AP
BOSTON: Jim McLaughlin holds his dog, Clementine, on his shoulders during a rainy St. Patrick's Day parade in Boston on March 14. Michael Dwyer/AP
CHICAGO: Delaney Mickiewicz smiles as she watches the annual St. Patrick's Day parade in Chicago on March 13. Nam Y. Huh/AP
CHICAGO: People look on as the Chicago River is dyed green as part of St. Patrick's Day celebrations on Saturday. Nam Y. Huh/AP
LONDON: On March 14, people dressed in leprechaun costumes celebrate St. Patrick's Day in London during the parade. Newscom
LONDON: Participants in green shamrock costumes walk to Trafalgar Square during London's annual St. Patrick's Day parade on March 14. Newscom
OTTAWA: A clown participates in St. Patrick's Day celebrations in Canada on March 13. Zhang Dacheng/Xinhua/Newscom
TOKYO: Japanese women wear festive St. Patrick's Day outfits in Tokyo on March 14. Some 2,000 people took part in the parade. Yoshikazu Tsuno/AFP/Getty Images/Newscom
MONTREAL: Spectators enjoy festivities at the 186th St. Patrick's Day Parade in Montreal on Sunday.
SHANGHAI: A man holds the head of a dragon used for traditional Chinese dragon dances during an event for St. Patrick's Day in Shanghai, China, on March 13. Nir Elias/Reuters
CHICAGO: Irish Prime Minister Brian Cowen (r.) and Chicago's Mayor Richard M. Daley wave to the crowd during St. Patrick's Day celebrations in the city on March 13. Nam Y. Huh/AP
WORCESTER: In Worcester, Mass., children ride atop a float during a rainy St. Patrick's Day parade on March 14. Paul Kapteyn/Worcester Telegram & Gazette/AP