One in Adelphi, Maryland, one in Wildwood, Florida, one at the US National Arboretum with a grandfatherly interest in many more around the DC area (unless noted, pictures are taken the day of post)
This tree was grown from seed (acorns!) collected in 1994 in Wudan Shan. It's . beginning to get some size and seems healthy and well-formed. All of the Asian Oaks don't do well for us, but this one looks good.