Original sentence: Certain structures made out of thick rock or concrete, like the Egyptian Pyramids or the Hoover Dam, might survive with minimal damage.Large structures such as the U.The Hoover Dam, one of the last remnants of advanced civilization, would fail due to erosion of its concrete and the cumulative effect of seismic activity
Edited sentence: Certain structures made out of thick rock or concrete, like the Egyptian Pyramids or the Hoover Dam(Boulder City), might survive with minimal damage.Large structures and bridges such as the U.The Hoover Dam(Boulder City), one of the last remnants of advanced civilization, would fail due to erosion of its concrete and the cumulative effect of seismic activity