Here are a few sites on the island of Oahu, where Honolulu is located. Included: North Shore, Dole Plantation, USS Arizona Memorial, Aloha Stadium, Waikiki Beach, Diamond Head Crater, Toilet Bowl, and Hanama Bay.
.. Or, at least, looks like it.
Here is the waste dumps "mountain" of the chuquicamata open pit copper mine. north of Chile. Its diameter is about 1600 meters!
... Would it be because the Santiago (name of the capital of the country) emblem is a scallop shell?
I found this misplaced "Shell" symbol in perljam.net, placed by "piskasp", ad it has intrigued me. So I find the answer - it's on http://ceiroquinho.cmc.free.fr/ and it is related with the devotion to one of Christ's apostles, Saint-Jacques of Compostelle (site in Portuguese - look infotos/compostelle)