1. Washington, DC, United States --
If you're interested in history, architecture, art, religion, aerospace, or even wax, Washington DC has a museum - or 12 - that will pique your interest. The 19 Smithsonian museums, including the National Museum of Natural History, the National Museum of American History and the National Air and Space Museum, may appear to eclipse other institutions in the mid-Atlantic city, but other niche museums do just fine holding their own. Spend a morning reflecting at the Holocaust Memorial Museum and an early afternoon at Ford's Theater - where Lincoln was shot - before strolling the National Mall and other outdoor hotspots like the spectacular National Arboretum (Source: Reuters/ Online travel adviser Cheapflights)
Willie Walsh has always been one of the most outspoken chief executives in the aviation industry but now having steered British Airways and Iberia back into the black, the Irishman is proving there is metal behind his words.