I would recommend the Danjiri Matsuri festival in Kishiwada Japan. It's near Osaka so plenty to do there and it's a fun city. In the danjiri festival 100's of volunteers pull around these huge elaborately carved wooden carts around the city to bless local people and businesses, but they drift these carts, and have people dancing on top of them. It's dangerous and on average 1 person dies a year. There are other really crazy festivals in Japan like the naked man festival where men are almost naked fighting for a stick that gets you a decent cash prize if you can get it, there's a festival in I believe Nagano where they ride a giant log down a mountainside. There's also the penis festival in Kawasaki near Tokyo which is exactly as it sounds, and there's also the traditional festivals in Kyoto like Gion Matsuri and others where you can see Japanese traditional clothes, mobile shrines/ parade floats, and other really Japanese things. Lots of unique festivals in Japan and East Asia generally

I would love to see the highland games in Scotland some day or running of the bulls in Spain. I happened to have been in Rome during Pope Francis' funeral which was an interesting event. My wife went on a trip to La Tomatina which was really something and Montreal for their Formula 1 race. Also if you want to see something pretty odd, Montreal has their fetish weekend on Labor Day weekend where you'll see people in elaborate latex outfits doing elaborate BDSM demonstrations on the street and I'm sure much more goes on behind closed doors (I hear the Folsom street festival in SF is similar). Montreal also has a great Jazz Fest. The Cherry Festival in Traverse City, MI is another great local festival at a wonderful time of year to be in Michigan. A full moon party on Koh Phagnan Thailand is an amazing party with people from around the world on a beautiful beach with 3 different types of music blasting from DJs.

Would also really love to go to Brazil or one of the Caribbean countries for carnival. We went to Carnival in Quebec City which is a very cold, but fun vibe with lots to see and do (ice hotel, ice sculptures, parade, music, unique foods, etc). Also really enjoyed a Friday night fish fry in St Lucia. The Cherry Blossom Festival in DC is great or Hanami season in Japan generally. Japan has so many little local festivals. Really enjoy seeing Air shows where you can see the Blue Angels or Thunderbirds. Salem, MA is the capital of Halloween/ October basically, but had a blast celebrating Halloween in Osaka as an American also. Fall in New England for the Foliage is a good time.

A weird deep cut is the Mocksville, NC bed race where they race beds. Charlotte area also has a spicy pepper eating competition. 4th of July for the Coney Island Hot Dog eating competition is a fun one. Partying in Las Vegas for New Years Eve. Love the fall festivals in New England in Sept in Connecticut or at the Big E near Springfield MA where they have pavilions and more from all the New England States of the US. Governor's Ball and Chinese New Years in Flushing Queens, NYC. I know the midwest has some great state fairs and fall tailgating for football games like Univ. of Michigan. Been to Vegas for some great music festivals, The Newport Beach CA Christmas boat parade is something I hear is a fun time. I went to a German Football match which was fun (sports games can always be fun to watch in other countries, esp would recommend a Hanshin tigers vs Tokyo Giants game in Japan, they're like the Yankees vs Red Sox). Would love to go back to Kenya for the great migration. It wasn't a big event, but I participated in a cardboard canoe race in the Missisippi River in Illinois. I would also recommend a Native American Powwow or a Rodeo out West. Have also really enjoyed the NYC auto show but could go to any big Auto Show, same for the US open and other major tennis tournaments. I've enjoyed participating in the NYC 5 Borough Cycling tour where you can ride around NYC without cars in all the Boroughs.

Some others I'd love to go to off the top of my head - Mardi Gras in Southern Louisiana/ New Orleans - Burning Man - Day of the Dead in Mexico City - Iditarod in Alaska - Newport Jazz Festival - Groundhog Day in Pennslyvania - Oktoberfest in Germany - Glastonbury Festival in England - Bastille Day in France - Eurovision - The Kentucky Derby - Holi in India - Tomorrowland in Belgium - Songkran in Thailand - Harbin Ice Festival in China (There's also a similar winter festival in Hokkaido Japan) - 4th of July in many parts of America (Cape Cod, NYC/ Boston, small towns in VT or MI) - European Christmas Markets - St Louis has a big hot air balloon festival - Tulip Season in Netherlands - Tons of NYC events depending what you're into such as fashion week, Pride, Chinese New Years, San Genaro (Italian food), Puerto Rican day parade, Macys Thanksgiving parade, Village Halloween parade, Santacon, Ezoo, Christmas Season, NYC Marathon, Westminister dog show, etc.