US-2698995 to Taiwan shows a cactus grown in a lot across The Orleans in Las Vegas, Nevada that I used to see often on my way to an evening workout. The ever changing impressions of the cactus' silhouette against the evening skies had made up an fascinating time-lapse movie in my mind over time.
However, after a long absence from that location, I recently found out that the cactus had been since removed, and an advertisement post was in its place. A current Google Street View image with a capture date in June 2014 still shows its existence.
I had made a card out of an inverted image from the photo above to go with a Shirley Chisholm Black Heritage Forever stamp. "Unbought and Unbossed", this cactus is just a perfect example that one can still have a long lasting positive impact on others, even her physical existence has been destroyed.