Honestly the "too far-fetched" ship sailed the moment we all agreed giant geoglyphs in the desert that can only be properly seen from the air is a totally normal thing ancient people just did for fun.
Like who were they drawing for? The birds? Come off it.
I live near Pendle and even the weird stuff round here has some kind of practical explanation eventually, but the Nazca Lines genuinely break my brain every time I look into them. The sheer scale of it. You don't do that without a reason and "ritual purposes" feels like what archaeologists say when they've got nothing.
Not saying it was definitely alien runways or whatever but the landing signal theory isn't any more daft than half the official explanations tbh. Anyone here actually looked into the acoustic theories as well, theres some interesting crossover with the ground markings apparently. Would love to know what others think.