How can you see all properties of a mail, calendar or task item in Outlook?

How can you see all properties of a mail, calendar or task item in Outlook?

I'd like to see all the properties of any item in Outlook. I know there are more properties than get exposed via the dialogs and forms within Outlook, but I don't know how to see behind-the-scenes. For example, I'm sure a calendar entry must have a created date stamped on it.