The illustrations of the building of the Aqua Claudia show Roman construction machinery made entirely of wood and driven by human muscle

Sophisticated hoisting machines existed in Ancient Egypt too, though they bore little resemblance to modern cranes, being systems of inclined planes and levers. A crane similar to those depicted here appeared in Ancient Greece and is known as early as the 500s BC; the Romans improved upon the Greek design and created the swivelling crane and the cage lift, which are, in essence, still in use today.

Yes, the Wonders of the World can be built without aliens, internal combustion engines, pumps and welding: all that is needed is knowledge of the sciences and diligence.