From my neck of the woods.
The Pacific NW USA is known for trees, including the Douglas Fir. This tree in our yard is about 80 to 85 years old, which I know because an old neighbor had a picture of himself when he was a child with our house in the background and the tree wasn't there.
Our house was made in 1890, which is old for our city. Doug fir trees made great building material. (In my prior house we had joist 20 feet long that were 2 inches by one foot. I found them when I was remodeling.)
These came with our house. One is a jack and the other is part of block and tackle pulley. Given the size, I believe they were used in harvesting the trees. The watch is for scale.
We used to have a trolley go nearby the house, bringing people up from downtown to the park nearby. Down the hill from us, an apartment building was under construction and needed to dig up a sectionof the road to connect to city services. In digging up the road, they cut out a section of rail line, which I snagged and put in my yard as a boot scrap.
Next to the rail section is the hub of a wagon wheel. The last remaining wooden spokes rotted away a couple years ago.
I like these objects because they make me aware of the people who came before me, as well as how much changes in such short time. Vincent Van Gogh was alive when our house was made. In 1890, people were roaming the West with Colt revolvers on their hips.
Got a few more oddities that I might look for later.