In classical mythology, Castor and Pollux were twin sons of Leda and brothers of Helen of Troy.  In Greek, they were called the “Dioskouri” or “sons of Zeus,” while in Latin, they were called “Gemini” or “twins.”  There was a temple in Ancient Rome—the Temple of Castor and Pollux—dedicated to the twins. The concert hall in Birmingham, England—the Birmingham Town Hall—is modeled on this temple.

Gemini is also a constellation and one of the Twelve Signs of the Zodiac.  “Gemini” has also been used as the name of several other things, such as NASA’s Project Gemini, its second manned space project, and the Gemini Awards, given out for the best television productions in Canada.