Read the passage and answer the question Photography tour of London at night The most popular tour nowadays is a tour of London at night. This tour is perfect for anyone keen on photography-beginners and experienced photographers alike. Spend an evening visiting some of London's most iconic sights like Big Ben and Piccadilly Circus, and receive expert tips on creating beautiful images after dark. All our guides are local professional photographers who love helping people improve their skills.
-- What part of the day does the tour take place?​