The Tree of Verda was the landmark that Verda put her spirit into. The tree is in the center of Verda, and is a holy landmark for the Elves, and Sapientem.
The Tree is said to give life to anything pure. Milcoth at one point tried to use it to regain his immortal status, but was stopped by Verda's spirit. It was said that Verda and Milcoth had a spiritual battle against each other, and that Verda won, casting Milcoth out.
Every thousand years, the elves and sapientem gaver around the tree to honor Verda for giving her life to save them.