hoover dam
Yes. It is an amazing feat of engineering.
The reason why it was such a magnificent engineering feat is because of the elevations, the Yellow Fever, the challenge of managing a flooded river and the differences in tides.
They Build Stone Houses.
That is a matter of opinion.
Eugene Ely was a pilot who piloted a Curtiss biplane on the first flight to take off from a ship. Also asphalt was being manufactured from oil refining byproducts.
The closest I can come to an antonym of feat is triviality. A feat is a notable accomplishment (such as a feat of strength) so an accomplishment that is in no way notable could be described as a triviality.
It was the famous stone-paved roads (via munita) that connected the city of Rome with territory throughout the empire.
panama canal
The reason why it was such a magnificent engineering feat is because of the elevations, the Yellow Fever, the challenge of managing a flooded river and the differences in tides.
There are many, the Aqueduct, the Coliseum, the Pantheon, Sewers, the Roman Baths.... among hundreds of other fantastic architectural and engineering marvels.
The reason why it was such a magnificent engineering feat is because of the elevations, the Yellow Fever, the challenge of managing a flooded river and the differences in tides.