The Parliament Hill Light Show in Ottawa, Canada, is a spectacular multimedia sound and light event held on the historic Parliament Buildings' facade. Known as the "Northern Lights" show, it runs for about 30 to 35 minutes and features a vivid display using 17 projectors, over 150 lighting devices, and 50 automated lights, creating an image 469 feet long and 30 floors high with 35 million pixels for excellent visual quality

. This free, bilingual show (English and French) is typically presented nightly from early July to early September, with start times varying by month depending on sunset (e.g., 10:00 PM in July, 9:30 PM in August, and 9:00 PM in September)

. The show narrates Canadian history through five thematic segments: Foundations of the Nation, Strength in Partnership, Discovery and Adventure, Valour, and Pride and Vision, combining stirring narration and an original musical score

. The Northern Lights show has been a popular attraction since 2015, drawing over 1.5 million spectators, and is considered a must-see event when visiting Ottawa

. It offers an immersive experience that educates viewers about Canada's key historical milestones and achievements through a dynamic and artistic presentation

. Additionally, visitors to Parliament Hill can enjoy free tours and other programming year-round, making it a central cultural and historic site in Canada’s capital

. Some tour packages also combine the light show with night tours and river cruises for a comprehensive evening experience in Ottawa