The annual Boston Pops Fireworks Spectacular hosts 500, 000 spectators, according to the event's website.

CNN: SHARE THIS

The 2004 marathon attracted 2, 594 runners and 5, 657 spectators, according to the research compiled by jogscotland, a Scottish Executive-backed running organisation.

BBC: Londoner Terry Cowan loves wearing the kilt.

Temporary seating and venues, like the 12, 000-seat Basketball Arena, will accommodate nearly 300, 000 spectators during the games -- a figure without precedent at any previous Olympics, according to organizers.

CNN: Olympic Park sets gold standard for sustainability