>>40828943
The washington monument gets hit by lightning strikes so often that the lightning rod had to be replaced annually. They got tired of doing so, and replaced it with a solid steel cap pyramidion.

It is believed that the witness tree, that was the only isolated witness tree on capital hill, was struck by lightning so many times that about half of the core of its trunk became petrified. This petrified glass-like wood was the reason the tree couldn't be cut down by saw.