Aside from my first instinctive answer of "your mom’s house"…
…the Army has sent me:
4 years Germany
6 months Macedonia
2 months Belgium
3 weeks Czech Republic
2 weeks Kosovo (Bosnia & Herzegovina)

Short visits:
U.K., Ireland, France, Luxembourg, Netherlands, Liechtenstein, Switzerland, Italy, Austria, Slovenia, Greece, Bulgaria, Sweden, Finland, Estonia, Poland, Hungary, Canada, Mexico, Jamaica.

And I have been to Texas, which counts as a country in my book.

I would never have gotten the chance to visit many of these places without the U.S. Army, an organization filled with opportunities to travel to many good places as well as a few bad ones. If you get the chance, post to Germany. Every 4-day weekend is another country checked off your list.