As can be seen above, a U.S. Army soldier stands watch outside of Torkham Gate, one of the main border crossings between the recently war-stricken countries.
13. Italy and Switzerland
Along the border of Italy and Switzerland high up in the alps sits a single hut used as a research center for low temperature climates. The unique building can only be reached by foot and was first constructed by the Queen of Italy in 1893. The current structure was remodeled fairly recently and still serves in the development of high altitude scientific studies.