The Gateway City Hack: How Smart Travelers See Europe (and Beyond) for a Fraction of the Cost

Most people think international travel is expensive. They're not wrong — if you're doing it the conventional way. But there's a strategy that seasoned travelers have quietly been using for years, one that lets you visit five or six countries on what most people spend to see just one. It's called the Gateway City Hack, and once you understand it, you'll never book a trip the same way again.