The capital of Belgium — and political center of the European Union — has one foot in the old world and the other in all things shiny and new. Sleek modern buildings are scattered around the city, while most of the visitor-favorite sights are in Brussels’ historic district. The area is marked by a grand square and other architectural gems dating back 600 years. Just don't blink or you may miss one of the top landmarks — a cherubic little fountain.