The Day of the Dead (Spanish: Dia de Muertos) is a Mexican holiday celebrated throughout Mexico, in particular the Central and South regions, and by people of Mexican ancestry living in other places, especially the United States. It is acknowledged internationally in many other cultures. The multi-day holiday focuses on gatherings of family and friends to pray for and remember friends and family members who have died, and help support their spiritual journey.[from wikipedia]

In architecture, an atrium (plural atria or atriums in both British and American English) is a large open air or skylight covered space surrounded by a building. [from wikipedia]