The partial failure of the Rapidan Dam in Minnesota forced a local landmark to fall into the Blue Earth River.An 11-year-old boy recorded a dramatic video of the structure collapsing into the water The house belonged to the owners of the Rapidan Dam Store, but fortunately no one was home at the time. The family that lived there had been evacuated.Due to Minnesota's historic flooding, the ground under the house had been undermined by water rushing around the 114-year-old dam, which partially failed Monday.That led to massive erosion on the shoreline.