The world’s most beautiful skylines are more than just collections of buildings placed close together: They’re the façades of entire cities, the front doors to many of the earth’s most vibrant metropolises. It’s these man-made horizons that often offer the first impression to visitors and imbue a sense of home to returning locals. But what exactly makes a beautiful skyline? One that is immediately recognizable? Those that are the most harmonious? The cities with the greatest number of individually striking buildings? The answer, is of course, some collection of all of the above. Like when discussing most aesthetic disciplines, visual examples are far more powerful than description will ever be. To that end, AD has rounded up 17 of the world’s most beautiful skylines, covering notable favorites like New York City and Shanghai as well as some lesser-known stunners that deserve more acclaim. Did your favorite make the list?