A photograph of (l-r) Hayao Miyazaki, Yoichi Kotabe and Isao Takahata on location in Switzerland in 1973. They were scouting locations and doing research for Heidi, Girl of the Alps, which aired on Japanese TV in 1974, becoming a ratings sensation and helping to spark the anime boom of the 1970s. The series was exported throughout the world, arguably the first anime series to successfully do so. The house in this photograph was the model for the Alm-Grandfather's house in Heidi.
The second photo shows Miyazaki (age 32) and Takahata (age 38) on a train in Switzerland as part of their 1973 trip. Kotabe (age 37) is not visible in this shot; perhaps he was the one who shot the photo.
Update: Added a second photo of the Heidi house. As you can see, it's the exact same house as seen in the classic anime series, minus the gigantic trees in the back yard.