The Earth's interior is composed of four layers, three solid and one liquid—not magma but molten metal, nearly as hot as the surface of the sun. The deepest layer is a solid iron ball ...

It's a seller's market, even for one of the most well-known residences in silver screen history. The five-bedroom, six-bath red-brick Georgian-style home in Winnetka, Illinois, where 1990's Home Alone ...