This may be of interest to Melbourne-based eeblog forum members:
Sunday is the annual Australian Synchrotron open day. This is the one day of the year the general public is able to wander around the experiment floor, see all the beamlines and even parts of the storage ring.
You need a ticket, but fortunately tickets are free!
Details and tickets here:
http://www.eventbrite.com.au/e/australian-synchrotron-open-day-2015-tickets-18128453693