Chances are you think of Japan as the single island of Honshu, home to the major cities of Tokyo, Kyoto, and Osaka. But in reality, Japan is a chain of islands that includes well over 6,000 islands. And thanks to the placement of the islands from north to south, you'll find a huge variety of climates from Hokkaido's deep snow (and amazing skiing) in the north to Okinawa's beaches and crystal blue water in the south.

Almost 38 million people live in Tokyo, making it the world's most populated city. And while places like Shibuya Crossing make you aware you're in a city with tens of millions of people, most streets are so quiet you can hear a pin drop. It's a true testament to the quiet, respectful nature of most Japanese people.

According to data from CIA.gov, Japan ranks #4 in the world for life expectancy (just below Monaco, Singapore, and Macau). To put that into perspective, the U.S. ranks #46 with an average life expectancy of 80.43.

The oldest living person, Kane Tanaka, hails from the city of Fukuoka. She turned 118 (!!!) on January 2, 2021.

There's a reason the Japanese live long, healthy lives: for the most part, the population sticks to a diet of minimally processed foods, small portions, and lots of fish. A 2008 study reported that people in Japan eat an average of three ounces of fish daily. By stark contract, most Americans eat fish only twice per week.

Less than 1 percent of Japan's population identifies as Christian, but the holiday has been adopted on a secular level. And one of those stalwart Christmas traditions in Japan includes a visit to KFC for Christmas dinner. In fact, an estimated 3.6 million people in Japan celebrate with Christmas dinner at KFC. 

The tradition started in 1970 when the manager of the first KFC in Japan started marketing and selling a “party barrel” as a substitute for Christmas turkey. Apparently, this initiative worked, and people still flock to the fast-food chain for their fill of Christmas fried chicken.

In addition to raw fish (hello sushi and sashimi) you'll see people eating raw beef and, on occasion, raw horse meat. While controversial, raw horse meat is well known as a Japanese delicacy called bashari.

In Japan people are generally reserved and polite, but when it comes to eating noodles (something people do a lot) you'll find the notoriously polite Japanese loudly slurping their noodles. The reason? Some say slurping allows you to better enjoy the aroma of the noodles, which is best appreciated via the mouth.

Either way, it's one time you can cut loose without feeling like a loud, bumbling foreigner.

Vending machines are a big part of Japanese culture. You'll find them on most street corners and outside many restaurants where you actually order via vending machine and give your ticket to the staff. In fact, there's one vending machine for every 23 people in Japan — the highest human to vending machine ratio in the world.

You can buy almost anything from these widely available and diversely stocked machines, including piping hot bottles of green tea, ice cream, toys, tech gadgets, underwear, and freshly made foods.

When you don't speak the language in a country you're visiting, menu photos are key. But Japan takes things one step further: many restaurants showcase fake food replicas that give diners a life-sized idea of what to expect. And boy do they look real.

In fact, making fake food has become a $90 million dollar industry in Japan, with an entire street — Kappabashi Street — dedicated to the art. (In fact, you can even enroll in a fake food making class like the one I took at Ganso Sample.)

It's not uncommon to see "salarymen" (stereotypical white-collar workers) napping on the metro, and while you could argue this is acceptable in most cultures, the Japanese take it one step further by encouraging people to sleep on the job.  Yes, you read that right.

Being caught taking a nap on your desk during the workday is a sign you're dedicated to your job and have been working hard.

In some Japanese schools, the kids actually clean the premises in lieu of hiring janitors.

Walk on any street and you'll see just how much maintaining a clean space (both in and out of your home) is an important part of Japanese culture.

If you only ever go to Japan for one thing, go so you can experience the toilets. The next-level fixtures are not only hygienic (with front and back bidets) but most have heated seats and some have a built-in fan so you can use less TP. The best feature? The music function which you can use for "discretionary purposes" (or just for your own entertainment) while using the bathroom.

We all need love, and in Japan you can literally pay a stranger to cuddle you. The "cuddle cafe" menu usually ranges from a short, 20-minute cuddle session to a full night’s sleep with a professional cuddler. 

If cuddling isn't your thing, you can also pay to be treated like royalty at one of Japan's maid cafes. Here, you'll find young women serving food, performing, and taking photos with guests — while dressed as a maids.

While both sound highly sexual (and potentially inappropriate), the reality is much more wholesome than you might expect.

Tattoos may be the norm in many cultures, but in Japan there's a serious stigma around tattoos. In some cases, they're seen as ugly, dirty, and a sign that someone is associated with crime or gangs.

Because of this, many of the country's onsens (hot springs and bath houses) and some public facilities (pools, beaches, gyms) actually ban people with tattoos from visiting. Thankfully, the stigma is slowly changing.