1. Marché aux Puces Saint-Eustache
A year-round indoor shopping mall-style flea market that expands further out onto its ginormous parking lot in the summer, the main structure is a maze of stalls split into themed sections and sports an impromptu food court. The summer season however yields an even wackier collection of vendors—trust us, we know after finding a taxidermied alligator and a six-foot-long loaves of garlic bread for sale in the same visit. Spend the day here rummaging until the sun sets and pull into the drive-in, where five screens play movies as of dusk (a different English double feature plays every Thursday).