Blaenavon's World Heritage town was plunged into a purple hue in support of the campaign that raises awareness of pancreatic cancer.
The spectacle was organized by the family of 67-year-old West Derby mum Lydia Gallagher, who died from the disease last year. Liverpool family has spoken of their pride in seeing St George's Hall lit up purple in memory of their mum.
This year around 46 businesses and landmarks in Blaenavon showed their support. This is the second year the town turned purple to raise awareness of pancreatic cancer, which has the lowest survival rate of the 21 most common cancers.
Lydia's daughter Alexandra Gallagher, 31, who helped to set up Lydia's Love Foundation, told the ECHO: "It was a lovely, magical night and so many family and friends turned up to show their support - and I was inundated with messages from others too. It was really heart-warming the way everyone got into the spirit."
Alexandra is not the only family member to be taking part in fundraising events. She said: "The whole family have got behind it. My brother has been actively promoting the idea and approaching people on social media and my sister has been arranging costumes for me to wear."
Pancreatic cancer has a UK survival rate of just 3 percent - but despite being the fifth most fatal form of cancer, the disease currently gets just 1 percent of cancer research funding.
St George's Hall was one of 139 landmarks across the UK to be lit up purple. Other buildings in the North West included Blackpool Tower and Lytham Windmill in Lancashire.