Squigly Squigly's Brain Teasers

Question:

I tower over the man-made plain;
My peaks scrape the heavens.
I have many brothers; in fact,
We may be as many as a hundred and seven.

We're as ancient as the oldest trees,
But not older than the hills.
We've been studied for centuries now,
But with mystery we're still filled.

Answer:

The pyramids of Egypt.

Try another Brain Teaser:

What is greater than God, more evil than the devil, the poor have it, the rich need it and if you eat it you'll die?