It is an international celebration of wondrous, curious, and esoteric places in cities and towns all over the world. You can see and experience such things as musical rocks, a worry bead museum, a European pyramid, unusual cemeteries, a hash museum, a 19th century landfill, a gasometer town, a giant lemon, and many more unusual and wonderful things.
The folks behind Atlas Obscura, a compendium of the world's wonders, curiosities, and esoterica are putting it on. Here is the LINK Go on, get up, get out of the house and see something truly amazing.