Right. It is a cherry tree. It's just that the only time anybody ever hears about them is when they are blossoming... then people come in to the see the "cherry blossoms"
That part of Virginia used to be part of Washington D.C. The District of Columbia was originally a 10 by 10 mile square, consisting of land donated by Maryland and Virginia. Virginia voted to take back the land they donated in 1846. Without retrocession, the Pentagon would be in Washington D.C.
The Tomb doesn't have an official name, but its guards and those associated with it almost exclusively refer to it as the Tomb of the Unknown Soldier (not pluralised).
I was stationed at Ft. Myer, which is next to Arlington Cemetery and where the 3rd Infantry (Old Guard) lives. They are the guys who guard the tomb, as well as do other duties like presidential funeral processions. However, I was in F Troop next door, not the Old Guard.
I actually think the level is quite fitting. Some easy ones, some I never heard of (the entire third row), and some I didn't know had anything to do with Washington - like cherry trees. As a European I actually learned something new
Over 3000 cherry trees were gifted from Japan to the United States in 1912. Washington and Tokyo have a similar climate and they've flourished ever since on the spot chosen for them along the Potomac.
You should acept Sakura as well. In the US might be mostly called Cherry but Sakura is a correct name also widely used. When I tried Sakura and didnt work I figured that the gift was something else.
You should be more specific with the wording on the speech question. Like, "title/name of speech". I feel like "MLK" should be accepted with the current wording. I figured out what you meant, but it just feels a little vague imo.
City limits usually don't coincide with official borders, especially in US