Stalactites drip like frozen chandeliers from a luminous blue-white ceiling in this vivid linen-era glimpse inside the "Mysterious Temple of Silence" — the showstopping New Room of Cave of the Winds, opened to a dazzled public in 1929 and described on the back as sparkling "like a room full of jewels." The hand-tinted colorization, a hallmark of Sanborn Souvenir's linen cards, bathes the formations in electric teal, amber, and brick-red hues that feel almost surreal against the rocky cave floor. Cave of the Winds, carved into Williams Canyon above Manitou Springs, Colorado, had been a tourist destination since the 1880s; the discovery and opening of this New Room was a major event in the cave's history, drawing visitors eager to see what promoters called the most beautiful chamber in the entire system. Card number 5666-29 suggests a 1929 print run, tying publication directly to the room's public debut.