Now referred to nostalgically as the Belle Époque, late-nineteenth-century Paris was a paradise for all those who loved a night out on the town. As contemporary tourist guidebooks promised, one could enjoy the city’s bustling street life and lively cafés, revel in its raucous balls and unruly dance halls, be dazzled by the latest music-hall acts and dreamy romantic comedies, and delight in any number of spectacular theatrical extravaganzas. Debussy was a night owl, well acquainted with Parisian nightlife. His favourite haunts included café-concerts and cabarets, operetta theatres and music halls, band concerts and the circus. Like many of his contemporaries, he not only sought amusing diversions in these eclectic and adrenaline-charged establishments but was also inspired by the whimsical fantasies and sensual delights they offered. This chapter offers a glimpse into the popular venues and novelties that Debussy discovered on his nighttime perambulations through Paris, providing a window into the world of popular entertainment that coloured many of his works.