The metro is great, but If you want to see a lot you have to walk a lot in Tokyo.
It is impossible to get lost, the system is so perfect. You can buy single ticket, daily and two days pass. This is the best value, almost 9 USD. It is quite affordable. The staff is very helpful, their english knowledge is quite basic, but they want to help, and this is the most important thing at all. All the stations are marked with name and number it helps in the orientation.
Obviously among the most important sights there are the religious places as well.
The Meiji shrine was dedicated to the Emperor and Empress in 1926. This is Tokyo's most popular and most important shrine.
Tokyo's oldest and most significant buddhist temple is the Asakusa Kannon temple also known as Senjo-ji. The temple is very nice, but very crowded, anywhere you move there is someone for sure.
There is a nice buddhist temple close the the world biggest fish market. Tsukiji Hongan-ji is a Jodo Shinshu Buddhist temple.
The Tsukiji fish market opens at 3:00 am with the arrivel of the products by ship, truck, train and plane from all over the world.
The market handles more than 400 different type of seafoods and overall more than 700 000 metric tons of seafood are handled every year. The number of registred employees varies from 60-65 000 workers. If you feel hungry in the close-by shops you can get very fresh products.
The Tokyo Tower is a communication and observation tower built in 1958. This is the symbol of the city. The height is 333 metres. Tokyo Tower's two main revenue sources are tourism and antenna leasing. The view is very nice, but there are much more impressieve lookout points in the world.
The French Statue of Liberty came to Odaiba, the beach area of Tokyo, from April 1998 to May 1999 in commemoration of the "French year in Japan". It was very populat, therefore in 2000 a replica was erected at the same place.
Hachiko Statue is a famous statue of a dog who processed legendary loyalty to his owner.
The true story of Hachiko the dog, who was a golden brown male Akita Inu, who would arrive at Shibuya Station every day just to wait for the return of his master Professor Hidesaburo Ueno. After the death of the Professor , for the next nine years, Hachiko continued to arrive at the station at just the right time to meet the train that should carry his master. This is an example of a great loyalty.
Based on the true story: Hachi a Dog's tale is my favourite dog movie, so it was not a question that I have to go to that place.
I'm very lucky, I arrived in the best season, in the middle of the biggest japanese holiday, this is the cherry blossom. This is magical, wonderful, amazing and very important for japanese people. Thousands of people fill the parks to hold feasts under the flowering trees according to the anciant tradition called "Hanami" (flower viewing).