Hollywood Secrets: The Hollywood sign

Welcome to Hollywood Secrets -- a weekly video series uncovering Hollywood's best-kept secrets. Check back for new episodes every Tuesday!

The Hollywood sign is probably the most famous sign in the world.

Originally conceived in 1923 as a temporary advertisement for a real estate project in the Hollywood Hills, the 45-foot-tall sign has become synonymous with show business and has been featured in countless films and television series.

The sign has its own share of history, including a massive renovation project spearheaded by Hugh Hefner in 1978. Come along as we take you through the secrets of the sign in the video above!

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