This is the tallest known American chestnut tree in North America, clocking in at precisely 115 feet. It's an exciting find for those seeking to eventually restore the tree to its previous habitat.
Marcello Mazzucchi, a retired forest ranger, stands in the Fiemme Valley in the Italian Alps. Renaissance luthiers such as Antonio Stradivari came here to handpick trees that would be crafted into the world's finest instruments.
Graziano Panfili for NPR
Visitors have flocked to the Angel Oak tree just outside Charleston, S.C., for generations. A local group has until late November to raise funds to buy a parcel of land that they say is needed to protect the live oak from development.
Guerrilla grafter Tara Hui grafts a fruiting pear branch onto an ornamental fruit tree in the San Francisco Bay Area. She doesn't want the location known because the grafting is illegal.
Lonny Shavelson for NPR