Introduction

A Preview

"The prettiest neighborhood in Paris is named after a swamp. Marais means marsh. For centuries this was mud and market gardens. Then a king built a square on it and the aristocracy stampeded in. The bog became the best address in Europe. Since then, this one square kilometer has produced more good stories per block than anywhere in the city."

Hear the full story in the app — narrated and timed to play right where you're standing.