Traditionally a celebration in the lead up to lent, Mardi Gras – a.k.a. Carnival, Shrove Tuesday or Fat Tuesday – is now celebrated as a major holiday around the world. From New Orleans to Australia, Mardi Gras is celebrated in its own unique way. No matter where you are, Mardi Gra has one thing in common: it’s a party you don’t want to miss. Here are the best cities in the world to put on your dancing shoes, bust out the eco-glitter and have fun.