Porto's Ribeira district from the Dom Luis Bridge Portugal

Looking Down From The Top of The World: In Photos

Travel, by its very nature, is all about a switch in perspective.When we're in unfamiliar territory, things that seemed incredibly important in our everyday lives can suddenly see trivial. And things that were trivial to us in our day-to-day lives (like a comfortable bed, or a good meal) are suddenly cherished.Here are a few of my favorite places in the world to look down across the rooftops.