Savannah | Traveling Introvert on Instagram: "Have you visited this abandoned factory? 🤫 The Standard Portland Cement Company in American Canyon, Napa Valley, was built over 100 years ago as a cement factory until it ran out of resources and was forced to close down in the early 1900s. It now remains as a site for graffiti artists to display their artwork, with increasing housing development in the surrounding areas potentially leading to a repurposing of this historic site. Source:thedreamingm