The CERN Open Days LHC2008 were held 5.04 (for CERN personnel) and 6.04. This was the unique possibility to look at the LHC collider and detectors, almost ready for startup this year. In the nearest 10 years this will be the frontier of the fundamental physics. 6.04.2008 there were more than 70000 visitors.
CMS hall, 100m underground. CMS barrel, Muon system and solenoid seen
CMS main shaft (100m underground). Endcup seen.
Higgs was observed at CMS just before the Open Days. Anomalously heavy