Lost Hills | Lost LA

Tunnels helped L.A. grow beyond its downtown core. Some are now lost to history. Others are merely hidden beneath the surface. Want to learn more? Watch more Lost LA at https://bit.ly/3qCwAew ~~~~~~ Subscribe to our YouTube Channel: https://bit.ly/3wiFfZ2 Love PBS SoCal? Your support keeps the programs you love alive. Donate today: https://bit.ly/you-tube-donation Follow us: Instagram:   / pbssocal   TikTok:   / pbssocal   Facebook:   / pbssocal   Sign-up for our Newsletter: https://bit.ly/3wby5Gb #LostLA #LosAngeles #history #NathanMasters #hills