Last year San Francisco's FIFTY24SF gallery hosted a celebrated exhibition on Blotter Art - and obviously on Mark McCloud, who's known for having the most diverse collection on this planet.

He owns over 33.000 tabs of LSD, which he collected over the last 30 years, he got busted twice and is occasionally investigated by the FBI.

Learn more about this incredible artist and collector over here, lose yourself in the Institue of Illegal Images... and maybe even treat yourself with a Fine Art print of your fav LSD imagery.