Circuit Gilles Villeneuve
In early June you can join the glitterati of Europe and America in the grandstand to watch million-dollar Formula 1 cars shriek around the 4.3-km (2.7-mile) track—if you're lucky enough and rich enough to get a ticket, that is. This is the kind of crowd that uses Perrier to mop up caviar stains from the refreshment tables. During the off season, the track is accessible to everyone. Locals spend sunny summer weekends cycling, rollerblading, and taking walks around this world-famous circuit.