Yup, we are lucky.
Depending where you plan on staying in Picardy, I do have some other options. As I said, it’s a big area. My suggestion would be to arm yourself with the Michelin ‘Green Guides’ to the regions. Picardy, as it is so large, probably embraces a couple of books. They are very good, designed for requests such as yours, listing (along with good descriptions) things to see and do, along with routes to ride to join them all up. If WW1 is your thing, then you are in one of the big areas, particularly when you get across to Peronne, with its very good museum. You also have the oddities such as, the Chinese cemetery at Nampont and, if you like that sort of thing, the steam train around the Baie du Somme.
Here’s what Michelin offers on-line, too:
https://travelguide.michelin.com/europe/france/picardie
In it Michelin lists 140 ‘attractions’ so there will be something for everyone. Use the Kurviger app to join them up, perhaps? Job done, enjoy your holiday.