In 1968, a California man began building a castle from scrap steel, bottles and old motorcycles; 20 years later it had a 74-foot clock tower

In 1968, Michael Rubel began building something that was never meant to be an ordinary home. On his family’s 2.5-acre citrus farm in Glendora, California, Rubel had already started constructing a private retreat from discarded bottles he collected from parties held by his mother. But the project kept growing until it became Rubel Castle, an extraordinary structure assembled from materials most people would have thrown away. Over the next 18 years, Rubel transformed salvaged concrete, stones, broken bottles and motorcycle parts into a sprawling hand-built complex. Its most recognisable feature eventually rose 74 feet into the California sky, a towering clock tower that gave the homemade castle an unmistakable silhouette. The project also attracted hundreds of volunteers, who helped Rubel cement and construct the unusual structures.

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How Michael Rubel turned discarded bottles into a California castle

Rubel’s unusual building project began partly as an escape from the social life surrounding his family’s citrus farm. His mother hosted parties attended by Hollywood figures and other prominent guests, but Rubel disliked the noise and constant visitors. He began collecting discarded bottles from those gatherings and used them to construct a private residence on the property. The bottle collection was only the beginning. In 1968, Rubel expanded his ambitions and began constructing what he called Rubel Castle, or “Rubelia”. Rather than buying conventional building materials, he relied heavily on objects and materials that had already been discarded. Salvaged concrete, found stones, broken bottles and motorcycle parts became part of the structure. Piece by piece, these unrelated objects were incorporated into walls, towers and other elements of the growing complex.

The castle grew for 18 years

Rubel did not build the castle according to a conventional construction schedule. The project evolved over time as he continued adding to it and experimenting with different materials. What began as a private residence gradually became a much larger artistic environment. The scale of the finished project was remarkable. According to Smithsonian magazine, Rubel worked on the castle for 18 years, while the entire complex eventually stretched across more than 22,000 square feet. Its highest point was the Clock Tower, which reached 74 feet. The unusual construction also attracted attention from the surrounding community. Once word spread that Rubel was building a castle from salvaged materials, hundreds of volunteers came to help. Their involvement turned the project into something larger than one man's eccentric construction experiment, with members of the community helping cement and build the structures.

How discarded junk became a 22,000-square-foot California landmark

Rubel Castle stands out because its materials were not chosen for conventional architectural beauty. Broken bottles, old motorcycle components, salvaged concrete and found stones might normally have been destined for rubbish piles or scrapyards. Rubel instead gave them another purpose. That approach placed the castle within a broader tradition of self-taught or visionary artists who transform discarded objects into elaborate environments. Smithsonian magazine included Rubel Castle in a collection of American sites where junk and unwanted materials became large-scale works of art. Rubel continued working on the castle until the project had become a major landmark in Glendora. Before his death in 2007, he arranged for the Glendora Historical Society to take over its operation, allowing the unusual creation to survive beyond its builder. The castle was later given historical recognition by the State of California in 2013. What started with discarded bottles on a citrus farm ultimately became a sprawling castle filled with salvaged materials. Over nearly two decades, Rubel transformed objects that had already been thrown away into something that could not easily be mistaken for anything else, a 22,000-square-foot artistic world crowned by a 74-foot clock tower.