The Swiss Matterhorn sways to its own sweet music.

Standing at an elevation of 14,692 feet, Switzerland's towering The Matterhorn appears immovable. But an international team of researchers discovered it sways back and forth, about once every two seconds. This perpetual motion creates a monumental waltz caused by seismic energy deep in the earth, ...This is an NSF Multimedia Gallery item.
Source: NSF Multimedia Gallery - Category: Science Source Type: video