| There's a million things to see and eat in both cities but here's a just a few:
- If you like sushi, see if your wife or her family can get you a reservation at one of the Michelin star rated joints. It's expensive but it's a once in a lifetime treat.
- If that fails, see if you can get into Kyubey. You don't need the crazy lead time to get a reservation there, but its still considered top notch. Many of the Michelin star chefs trained under him and the sushi is sublime. Multiple locations, but the main guy is in Ginza.
- Tsukiji Sushiko is sushi chain that is more casual but still excellent.
- World's Second Best Freshly Baked Melon-pan Ice cream is great for a walk up dessert joint. It's ice cream sandwiched between two pieces of hot Melon bread. So good.
- Piss Alley (Shinjuku Omoide Yokocho). It's in Shinjuku, and it got its name from the old days when bar goers would relieve themselves in the alleyways. Today it's an awesome place to get snacks (think grilled skewers and beer) in a throwback locale in the middle of the city.
- You can't go wrong with any of the top historical sites. There are so many. Kinkaku-ji, Kiyomizu-dera, Fushimi Inari Taisha, Sanjusangendo...Google ahead and make a list. Walk around all day and enjoy the food. Just a magical place, especially the river during cherry blossom season.
I would also consider Osaka and Nara since you're so close in Kobe.
- Osaka is famous for its street food. Foods to get there (or anywhere really): Takoyaki (grilled balls of batter and octopus), Okonomiyaki (kind of like a pancake with bits of seafood and veggies), Yakitori (grilled skewers).
- Nara has an awesome park leading up to Todai-ji temple. There are hundreds of deer that will walk up to you and eat food from your hand. The deer food is sold on the street and it's a fun experience.