They're gone. Lost to posterity. Dozens of landmarks throughout the years have been demolished, shaken, blazed, imploded, sunk, shifted and crumbled to oblivion.
Oftentimes, we bid good riddance to places we've been without a second thought. Change is nothing new, after all. But a handful of landmark destinations are worth remembering. They're the places that shaped our culture, history, politics, technology and understanding of the natural world. Even after going out with a bang, they've never fully left our social psyche.
Collectively, they've drawn millions -- maybe billions -- of travelers, vacationers and tourists over centuries. If we could get to them today, they'd undoubtedly draw more. We've picked 10, listed in no particular order, that we think merit special attention.