Just driving for a couple days on an interstate in the U.S. and then looking at the distance you drove relative to a globe or world map should give you an idea of just how small the world is. Understanding this serves as a catalyst for world travel. There's a whole lot of stuff happening outside your hometown and local region. Traveling has given me a global perspective. When you stay in one place without the full realization of what the rest of the world is like, I think a certain form of cultural myopia sets in.
Travel is the only cure.
Smell strange foods, view foreign landscapes, walk through ancient buildings, haggle with pushy merchants at a marketplace, suffer through days of diarrhea. These are the experiences which shape our total worldview. Below is a list of nations I have visited and my respective dates of entry, all listed chronologically. That's the exhaustive list. The flags on the left correspond to each of the countries on the list, displayed in order of entry.