Yes, they are. From back when the elves had an empire.

[ There's a pause as she considers this. For her, she's always thinking her people are calling her race traitor behind her back, and it gives her pause with things like this. Yet in the end, she usually goes with teaching humans about the elves. The longer the elves hide themselves away, the more time rumors have to grow. ]

I can show you. As long as you don't make fun of my terrible drawings. I tried to copy down the murals and statues. They look pretty bad by comparison.