Ever heard of "Galloping Gerdy" a.k.a. the first Tacoma Narrows Bridge? Here is a link to some video of it.
http://www.history.com/media.do?id=mm_ed_bridges_broadband&action=clip

They talk mostly about the role that aerodynamics played in destroying it, but the aerodynamic forces of the wind were just the energy input that amplified the resonant frequency oscillations until it failed. It was the oscillations that caused it to break apart - that really shows the destructive force of resonance...

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1984 300 Coupe TurboDiesel
Silver blue paint over navy blue interior
2nd owner & 2nd engine in an otherwise
99% original unmolested car
~210k miles on the clock

1986 Ford F250 4x4 Supercab
Charcoal & blue two tone paint over burgundy interior
Banks turbo, DRW, ZF-5 & SMF conversion
152k on the clock - actual mileage unknown