Answer:
Ancient and majestic, great big piles of stones, Used to encase both riches and bones. Seen from certain angles, They look like big triangles.
A setting that proved to be deadly for Abraham Lincoln.
What goes up and down the stairs without moving?
What has one hand longer than the other, and goes on all day and night?
What has two ends but no beginning?
I am a room that has a roof but no walls. What am I?