Well, I don't know what will happen now. We've got some difficult days ahead. But it doesn't matter with me now. Because I've been to the mountaintop. And I don't mind. Like anybody, I would like to live a long life. Longevity has its place. But I'm not concerned about that now. I just want to do God's will. And He's allowed me to go up to the mountain. And I've looked over. And I've seen the promised land. I may not get there with you. But I want you to know tonight, that we, as a people will get to the promised land.

-Martin Luther King, Jr.

Martin Luther King, Jr., delivered his prophetic "Mountaintop" speech in this church in Memphis, Tennessee, on the eve of his assassination--April 3, 1968.

Mason Temple served as a focal point of civil rights activities in Memphis during the 1950s and 1960s. Mason Temple was built between 1940 and 1945 as the administrative and spiritual center of the Church of God in Christ, the second largest black denomination. The temple is the centerpiece of a group of six buildings that form the church's world headquarters. Mason Temple is a vast concrete building capable of seating 7,500 people on two levels. The temple, designed with simplified Art Moderne styling and detail, was constructed for regular services as well as to house the annual national convention of church representatives.

https://www.nps.gov/places/tennessee-mason-temple-memphis.htm