There are some landmarks that it’s hard to imagine the world without. These are buildings and monuments so iconic that, today, it’s easier to think of them as an eternal part of our world rather than anything that was made by mere human beings.

There was a time, though, when these famous landmarks were nothing more than an idea in their creators’ minds, nothing more than plans and scaffolds created by people who had no way of knowing whether their work would last forever or whether it would be forgotten tomorrow.

[Read the full article at All That Is Interesting.]