One of the many, many trains found in the warehouse.
One of the many, many trains found in the warehouse. Screenshot via KXTV

Tom Gibson was working as a milkman when he started collecting trains; he bought his first set from one of his milk customers. Later in life, he was able to turn his hobby into a profession, when he opened Teddies and Trains, a toy store, in Sacramento.

Gibson’s own train collection was extensive. But his family had no idea exactly how large it was until after he died of a rare blood disease and they went to his warehouse.

“We knew he had a warehouse, we just didn’t know how big the collection was until we opened it up,” his daughter told local station KXTV.

Gibson’s train warehouse was giant—about the size of a basketball court, according to KXTV—and full of trains, dating all the way back to the 1900s. Many of the pieces were still in boxes and are now for sale: Gibson’s family didn’t inherit the train collecting gene. For anyone who loves model trains, though, the warehouse could be a treasure trove.