Black cube
Black cube may refer to:
- Alamo (sculpture), a black cube sculpture located in New York City
- Blackballing, a secret voting process where the balls are substituted with a black cube in Freemason lodge voting practices
- Black Cube, a private intelligence agency
- The Kaaba, a black cubical building at the center of the Grand Mosque of Mecca which contains the Black Stone; it is the most sacred site in Islam
- Tefillin, a small black leather cube used by Jews during prayer
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