Smithsonian was this lunch counter. It is the actual Woolworth lunch counter from Greensboro NC.
For those that don't know, in 1960, 4 students from the Agricultural and Technical College of North Carolina sat down at the Woolworth lunch counter in Greensboro. The problem was that they were African-American and the counter was not desegregated...They were refused service, but sat there all day. The next day about 20 students joined the "sit-in." While not the first non-violent sit-in, it has become one of the most famous...and did lead to that lunch counter and others being desegregated.
Now we looked at the counter, I told my niece the story and then we moved on. We were in a nearby exhibit when we heard singing and came out to see what it was...this lead us to a performance exhibit back at the counter. I took a few short videos of it.