Oraibi
Nobody built the Grand Canyon--it formed naturally because the Colorado River eroded the sides of the canyon off.
The Grand Canyon was not built, it is a natural gorge formed by the Colorado river where it runs through the US state of Arizona.
You're an idiot
About 17 million years ago. Actually the Grand Canyon was built 2 billion years ago!
It is a natural wonder.
Grand Canyon,Meteor Crater,Old Oraibi,Canyon de Celly,Colorado River,Lake Mead,Hoover Dam,London Bridge (at Lake Havasu City),Lake Havasu,Lake Powell,Glen Canyon Dam,San Francisco Peaks,Lowell Observatory,Fort Huachuca,Kartchner Caverns,Titan Missile Museum,Tombstone Historic District.
It wasn't built by people. It was created by nature and caused by water & soil erosion.
the grand canyon
a Grand Canyon is nothing but a big erosion.........
Copper Canyon (Spanish: Cañon del Cobre) is such landmark.
It was built to attract tourists and, thus, make money.