I thought this site (which lets you custom create a map of states) is pretty fun. Here are the places I traveled in 2007. I’ve have to do some research back into vacations during my childhood to figure out where I’ve been in my lifetime…we did a lot of driving when I was little.
create your own visited states map

There is also a site that will create a custom map of countries…here’s my very limited map of my lifetime…
create your own visited countries map

I could see uses for these sites in the classroom (beyond where you’ve traveled) like stories the class has read from around the world or correspondence with other classrooms or a Flat Stanley project. Do you have any ideas?