I've got a hash of hashes how do i get my values out

progressive has asked for the wisdom of the Perl Monks concerning the following question:

eg.

my %hash = (key1 => {key1a => 'value',
                     key1b => 'value',}
            };
[download]

I now want to use a foreach loop to get the values out. How is this done??

Originally posted as a Categorized Question.