They’re an impressive feat of human engineering. Man-made islands have sprung up in places that were once covered in water.

to Providence Canyon, which was formed through poor farming practices in the 1800s, here are 9 natural landmarks that are actually man-made.

Towering 630 feet above the ground, the glittering man-made marvel is the tallest stainless ... an 1839 architectural beauty. With historic landmarks, gorgeous gardens, and a marvelous artificial ...