11 Most Endangered Historic Places
Wa'ahila Ridge
Year Listed: 1997
Location: Honolulu, Hawaii
Significance
When the historic neighborhoods of Palolo, St. Louis Heights, and Manoa were built, they were done so with the natural geography of the Koolau Mountains in mind. But a massive power transmission line project threatens to tear through this pristine landscape and destroy this careful balance between the built and natural environment.



