Largest Halloween gathering

According to Official Guinness Records,

The largest Halloween gathering was achieved by 17,777 participants at an event organised by the New Orleans Saints and NBC Sports (both USA) at the Superdome in New Orleans, Louisiana, USA, on 31 October 2010.
The attempt was filmed as part of the nationwide broadcast of "Sunday Night Football" on NBC during which the New Orleans Saints defeated the Pittsburgh Steelers.

For a complete list of 2010 records, please visit 2010 Guinness Records in United States.

Related Images

Other United States records that might interest you:

• Largest jack o'lantern (size)
• First artist to have singles enter the top 10 of the US hot 100 in successive weeks
• Largest collection of chocolate bars
• Largest Parade of Scion Cars
• Most interceptions recorded in a game, individual
• Most expensive Barbie doll sold at auction
• Longest marathon harp playing
• Song sung in the most languages (Billboard Charts)
• Farthest distance to blow a coin
• Largest afro (female)
• Youngest Musician to Headline a Solo Concert Tour
• Most people dressed as superheroes
• Most landmarks illuminated in 24 hours