Staged in an old cave quarry, this massive, excavated cavern is divided into several connecting spaces that can be viewed in total from various vantage points.

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But it also had some good ideas, like visiting an 80, 000-year-old living cave.

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Millions also live in dilapidated old buildings, many of which cave in during rains.

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The discovery of 75, 000-year-old Nassarius shell beads at Blombos Cave in South Africa challenged this idea.

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The evidence comes from DNA extracted from a 40, 000-year-old leg bone found in a cave near Beijing.

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Then he found out about Paleolithic cave art, and became determined to find a Bavarian cave with paintings as old and remarkable as the ones in France.

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In 1940, four teenagers, following their dog when it disappeared down a hole near Lascaux, France, discovered 17, 000-year-old drawings now known as the Lascaux Cave Paintings.

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If the snow is the right kind (hard and old but not too old), you can dig out a cave or a trench, or even carve out blocks of snow with a ski-pole, machete or a stick.

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Perhaps the cave painting is 3, 000 years old.

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