This is going to be a little embarrassing
I haven't counted in awhile, but I think that I have visited somewhere between 80 and 90.
After college my buddy and I did Europe for a month. I've been back to Europe a few times since that epic adventure.
I left my first corporate job when I decided life was too short not live a little, so I backpacked through Japan, China, Tibet, Nepal, and India, and then hopped over to SE Asia. And that kicked-off a five year run where I would travel for 6, 9, to 12 months at a time and return to CA in between trips to figure out the next backpacking trip.
After that I did some sailboat charters through the Caribbean on down to Venezuela, and then backpacked through South America for a year.
Spent the next year backpacking through Mexico and Central America.
The next year-long trip was India and Nepal again, then over to some of the Middle East (Turkey, Jordan, Israel, Egypt).
Another trip I started in Cape Town and did an overland trip through some of Southern Africa and ended up in Eastern Africa.
Backpacked through Eastern Europe and the Balkans for a few months.
Spent a month on both islands in New Zealand.
The last trip was to the Baltic countries, started in Stockholm, Estonia, Finland, Latvia and Lithuania.
I'm sure I've missed quite a few others. Oh well