"strawberry fields forever" one of their greatest songs. ♪ strawberry fields forever written by john lennon, who used to play in the gardens of strawberry field, a salvation army home for girls in liverpool. it's a beautiful space to just walk around. >> it is. >> reporter: julia baird is lennon's half sister. what do you think this place meant to john? >> i think it meant an awful lot to him. the first thing that we know, which he wrote about, was strawberry field. the song is describing how he would come here. so it was obviously a place of importance to him. >> reporter: for decades, beatles fans have come here to take pictures of the famous red gates, but the gardens were overgrown. the victorian home empty, damaged by fire. now, lennon's playground has been reborn. let me take you down to the new strawberry fields, open to the public for the first time, where fans can follow the beatles' footsteps. this place, which was such an