The National Museum of African American History and Culture opened in Washington, DC. opened on September 24 2016. This museum is part of the Smithsonian Institution and it showcases the history, culture, and impact of African Americans in the US.
Visiting this museum can have an emotional effect on individuals. It is a good place to practice mindfulness.
https://at250.org/2022/01/31/simple-mindfulness-practices-you-can-use-anywhere/
https://www.history.com/this-day-in-history/national-museum-of-african-american-history-opens