The 5 Massive Buildings Projects That Were Never Built

Can you imagine a world in which the Eiffel Tower, the Colosseum, and the Pyramids of Giza didn’t exist? Of course not. After all, these are some of the most iconic architectural wonders the world had ever seen. What if we told you that there are projects that are even more grandiose and massive than these world-famous buildings we mentioned earlier, but never built? Here are 5 of such projects, from the age of Enlightenment to the 1950s.