London Marathon, April 13
London , England
Biggest and best international marathon, charity runs, street parties.
www.london-marathon.co.uk

Paris Marathon , April 6
95 countries represented http://www.parismarathon.com/marathon/2008/us/index.html

Glacier Patrol (Patrouille des Glaciers) 16-20 April
Valais, Switzerland
April (starts fourth Thursday every April)
A 32-mile hiking-skiing event
http://www.pdg.ch/

April Fair (La Feria de Abril) 7-13 April
Seville, Spain
April (every year)
Bullfighting, flamenco, horse and carriage processions
http://www.sol.com/en/modulo.asp?IdContenido=170&IdProvincia=41