Sailed past Cape Horn albeit via a cruise ship with stabilizers and live to tell the story (in ancient time the odds against you were 90%);
found out that you can actually visit Cape Horn
https://www.tripsavvy.com/things-to-do-at-cape-horn-chile-4156970
Images of Cape Horn https://www.bing.com/images/search?q=Cape+Horn&FORM=HDRSC2