HUBBARDSTON, Mass. - Hundreds of miles from Hollywood, a local father and son duo have managed to stockpile a collection of silver screen memorabilia rivaling a full-blown prop warehouse.

Over the course of several decades, Bill and Patrick Shea have painstakingly gathered what they believe to be the largest privately-owned collection of ‘Back to the Future’ screen-used vehicles and props in the world.

From Doc Brown’s mind-reading helmet to a film-accurate replica of his workshop, their barn is an impressive tribute to the films, and much like Marty McFly, the start of their journey can be traced back to the 1950s.

“My affection or affliction for automobiles actually starts very early when my parents took me to the Princeton Auto Museum back in the 1950s,” Bill said. “When it comes to Back to the Future, that probably starts with my son watching the movie.”

Patrick had just graduated high school when ‘Back to the Future’ premiered, and he vividly remembers his first time seeing it.

“I was able to go on that exact day to the theater in Gardner, next town over, to watch the film, and I had no idea what I was in for,” Patrick said. “I clearly had no idea what the movie would mean to me all these years later.”

People have traveled from around the world to see their collection, and every corner you look, there’s a new wrinkle from the film that leaves die-hard fans and some of the actors from the films alike speechless.

“Christopher Lloyd has been here, we’ve had Claudia Wells who played Jennifer here,” Patrick said. “We’ve had Donald Fullilove who played Mayor Goldie Wilson here multiple times. People come here and they have an expectation, and we aim to blow their mind. And in most cases, we really do.”

Bill recalled when a couple from Spain had a particularly special request - the couple had been to their collection several times already, but on that occasion, their trip would be the memory of a lifetime.

“They got in touch with us in February one year and said ‘Look, we’re getting married, we’d love to get married at your place,” Bill said.

Additionally, the collection isn’t limited to just one barn. Bill’s property has five buildings sprawled out like a small college campus, and over the years, he’s amassed an equally impressive collection of mementos from other films.

“Jurassic Park, Ghostbusters, Ferris Bueller’s Day Off, Bullitt, for those of you who remember Steve McQueen,” Bill said. “I’ve always enjoyed Steve McQueen, he was the king of cool. I now have three motorcycles that belonged to Steve McQueen.”

The Shea family has also found a way to do some good with their collection, passing along donation money they get from tours to the Michael J. Fox foundation.

“Every one of us has somebody in our lives that’s been affected by Parkinson’s,” Bill said. “I have someone in my life that was affected by Parkinson’s. So, contributions are going to what’s called Team Fox, and it goes to find a cure for this horrible disease.”

For more information on the collection or to inquire about tours, visit its official website.