Amid the bustle of modern Paris, I invite you to step back into the past. During the 1920s, Montparnasse was home to Ernest Hemingway and his long-suffering wife Hadley, F. Scott Fitzgerald and his troubled wife Zelda, writer Gertrude Stein and her companion Alice B. Toklas, the tormented painter Amedeo Modigliani and his muse Jeanne Hebuterne, singer and actress Kiki de Montparnasse, photographers Man Ray and Berenice Abbott, and bookseller Sylvia Beach of Shakespeare and Company.

Their lives criss-crossed in the cafés and bars they frequented, many of which survive to this day. So when you need a break, you are never far from a watering hole where you can sketch or scribble your own masterpiece.

The tour is ready whenever you are and the audio plays automatically at exactly the right time and place using your smartphone's GPS and the VoiceMap mobile app, which also works offline.