The small English town of Margate sits along the far eastern tip of Kent, across the English Channel from the French Port of Calais. Hidden underground, the magnificent Shell Grotto of Margate held its secrets of the past, until it was discovered in 1835. Approximately 4.6 million shells line the walls, ceilings, an altar, and a dome that opens to the sky. The entire grotto is covered in symmetrically-balanced and geometric shell work. However, nobody knows why or when this grand work of art was built, or by whom.