Mill Ends Park, known as the World's Smallest Park, well was. A park in Japan thought they had the world's smallest park until they learned about Portland' Mills End. In 2025, they changed that and officially have the world's smallest park but this one in Portland is still a must to see!

It is a teeny-tiny urban oasis located in downtown Portland, Oregon. It consists of just one tree and measures a mere 2 feet across, making it a quirky and charming attraction for visitors. Originally created by journalist Dick Fagan in 1948, the park has a whimsical history involving leprechauns, miniature statues, and even a tiny swimming pool for butterflies. Despite its size, Mill Ends Park continues to be a beloved spot for St. Patrick's Day celebrations and other fun events. So, if you're ever in Portland and want to see something truly unique, don't forget to swing by this pint-sized park!