Shinjuku is one of the busiest places in Tokyo and you can see various contrasts of society there. Numberless stories are rolling under the huge buildings in somberness. Good to walk around through the night.

Shibaura House is a unique workshop space in an office district. The building was designed by Kazuyo Sejima, an architect who has often worked outside of Japan. The first floor has self-published zines from all over the world, sent in by small publishers. It's kind of like a park: there are tables and chairs that anyone can sit on while looking at the zines. It's free of charge.

This cave at the foot of Mt. Fuji is located in the spread of volcanic rocks, surrounded by sea of trees where compass is no use. The temperatures drop suddenly, and you will not be able to stay inside the cave for long. However, the explorers will go further inside seeking for the bats flying around. It is highly recommended to visitors of the sacred Mt. Fuji .

Calm and quiet place to drink tea and enjoy a nice conversation.

This is my favorite go-to coffee shop in Tokyo. It's in a quiet and quaint space. I recommend trying their coffee and muffins. It's also right across a park and playground.