Overlooking the relevance of geotechnical engineering can lead to catastrophic outcomes. For instance, the Leaning Tower of Pisa's infamous tilt was a result of inadequate consideration of the ground conditions. Another example is the Millennium Tower in San Francisco, which has sunk and tilted due to its foundation being driven into soft, compressible soil rather than bedrock. These examples emphasize the critical need for geotechnical assessment before construction and the importance of methods like pile driving and foundation drilling.