The London Transport Museum Depot in Acton is like a hidden treasure trove for transport enthusiasts. It's not your typical museum - it's more of a behind-the-scenes look at London's transport history. You can explore over 320,000 cool objects, from vintage buses to old ticket machines. They even have a working miniature railway! Just remember, it's only open for special events like guided tours and open days, so make sure you book a ticket before heading over - have a look at their website for the latest opening dates and times.