Google has a cool new maps feature that lets you create your own maps and save them.

Here are all the cities and countries I have ever visited.

http://maps.google.com/maps/ms?ie=UTF8&hl=en&msa=0&om=1&msid=111478126673139393355.00000111c2daad45666d3&z=2&ll=44.087585,-3.867187&spn=144.363001,326.953125

Very interesting.