Del Diego, Madrid

This New York–style bar is perfect for women in stiletto heels and elegant men. You can easily imagine Frank Sinatra sitting here with one of their elegant cocktails, which are the house speciality. The bar is king here, serving everything from mojitos and caipirinhas, to international classics like dry martinis and Manhattans, to trendy cocktails like cosmopolitans, apple martinis, mai tais and sex on the beach. They also have some of their own creations such as the Del Diego and El Soltero Tranquilo. The owner learned his trade at Museo Chicote in the 1980s before going on to open this bar.