We just bought some land with these trees lining the driveway. What are they?
https://scontent-b-lga.xx.fbcdn.net/hphotos-ash3/548423_598461763530441_1035668206_n.jpg
Looks like nuts of some sort. Crack one open and take pics of that.
It seems vaguely pecanish to me for some reason.
Edit- are they fruits?
Where do you live? How tall are the trees? What is the bark like?
Sorry, they are in central Missouri. I am in Maine, and didn’t bring any home with me. They look more like fruit than nuts, kind of like small, slightly hairy olives. Pics of the whole trees, which are maybe 20’ tall right now and have a roundish shape:
https://scontent-a-lga.xx.fbcdn.net/hphotos-prn2/1375323_598461713530446_1194453986_n.jpg
https://scontent-b-lga.xx.fbcdn.net/hphotos-prn2/1173714_598460360197248_1861640743_n.jpg
The leaves are just staring to turn red.
Bradford pear?
ETA link to pic: File:CalleryPearC.JPG - Wikipedia
That looks right, thanks!
Expect your Bradford Pear trees to get big and gorgeous, showing great fall color, then to break asunder in a mild windstorm. 'Tis their way.
Plus, the blooms stink.
+1. Cut it down before hurts someone or damages something. I’ll not even mention the smell. I was almost banned from a gardening forum for describing exactly what it smelled like.
There are about 15 of them lining a long driveway on 25 acres way out in the country. They aren’t going to hurt anyone or damage anything, but I’ll try to stay downwind. 
There are many varietals of flowering pear. The one known as “Bradford” is known to be especially fragile; other varietals are not fragile at all. My parents have a flowering pear out front of their house in brooklyn and it came through hurricane Sandy just fine (a 50+ year old sycamore maple was fully uprooted by the wind, taking out several cars and a second-story window). In my neighborhood, on a street lined with flowering pears, only one was damaged when a freak tornado touched down nearby. It snapped clean in half at the trunk. The rest were basically undamaged minus a few lost leaves.
I think the Bradford varietal is quite common in the south, where it gives the whole breed a bad reputation. Here in NYC, the “flowering pear” is regarded as a virtually indestructible street tree.
In what state is your land located? The size of the leaves and the veining appear of tropical origin. The fruit, however, looks like crab apples. It’s difficult to judge the relative size of the leaves and the fruit…can you estimate the height of the average tree? Were they planted in an ornamental manner?