Saturday and Sunday, September 20 and 21, 2025, from 10 a.m. to 6 p.m.

The theme for this year's event is "Sights, Sounds and Stories in our city." Businesses, places of worship, entertainment venues, museums and heritage organizations will all showcase how sights, sounds and stories have shaped London over the years — through performances, demonstrations, guided tours and re-enactments.

Participating sites will showcase how communities and neighbourhoods have changed and impacted Londoners in their everyday lives. The event will also showcase how work culture, demographics and the impact on the economy have shaped the organizations and helped the sector evolve. Cultural organizations will show how Londoners have embraced the arts not only as a means of entertainment, but also as a means of pursuing interests and engaging in their passions.

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