BHAKTAPUR: The photos of Kathmandu Valley and its surroundings taken during the 1950s by renowned Swiss geologist Toni Hagen (PhD) have been kept in exhibition at Bhaktapur.

Hagen's daughter Katryn Hagen inaugurated the exhibition in Ganchhe of Bhaktapur Municipality on Monday evening.

The exhibition includes Hagen’s photographs of Kathmandu, Bhaktapur, Lalitpur, Kirtipur, archeological heritages, historical buildings, historical ponds, Durbar squares among others.

Conservationist Rabindra Puri said that 50 photographs taken by Hagen would be kept in exhibition till April 1. He shared that the exhibition was organised to encourage people for conservation of heritage and protect them from further deteriorating.

On the occasion, Katryn Hagen expressed her pleasure regarding the exhibition of her father’s photography adding that the historical heritages in Kathmandu Valley are extremely beautiful.