This is an amazing museum to visit. It's easily accessible via Ueno Station, where you have to walk a bit through Ueno Park before being able to enter. A street divides Tokyo National Museum and Ueno Park, and the gate tickets will be right outside, so you will be restricted via a gate unless you buy tickets, in which case, they'll let you enter. The museum also has other buildings with other exhibits, but it's not connected to the main building (The Honkan). It took me only 2 hours to view the entirety of the main building. I also visited the Heiseikan, which is the only separate building that's connected via a passage, but I didn't take a look at any exhibitions there. They even have its own garden there! This means if, let's say, it was raining, this would be the only building you could access through the main one without using an umbrella/getting wet. Also, if you're under 18 or over 70, entrance is free for you. You just have to bring your ID to confirm, and they'll give you free entrance to all areas. If you're 15 or younger, then even special exhibitions are free! But access to special exhibitions can be complicated without your ticket. The ticket master at the front gate took my ticket, so I had to ask my father to send me a picture of my passport to show the workers, so I could receive free entrance. ALWAYS remember to keep your ticket on hand. Although I arrived at 6 PM, which is 2 hours before closing time, there was still a moderate number of people there, but it drastically died down during the last bit. The museum has a weird schedule: Generally, the museum is open at 9:30 AM, and usually, it closes at 5 PM. But on Fridays and Saturdays, the closing time extends until 8 PM, and it's closed on Mondays. Last admission is 30 minutes before closing time. Around the museum, they display many items from Japanese history, including amazing artifacts such as paintings, armour, samurai swords, everyday items from the emperor's family, and much more. There are only 2 floors, but the museum also has a gift shop. Some exhibitions have a rule where photos are prohibited, and if caught, you will be asked to delete the photo. Even taking a picture of the "No photo" sign will result in deletion if caught. Although only two floors (In Honkan), again, seeing all of the Honkan will take almost 2 hours, so plan accordingly if you want to go to EVERY building. Overall, an amazing museum. It hosts countless artifacts from Japan's history, and is a quite massive museum when you account for its size, so a great museum that you can spend possibly a day looking at and seeing items from historical Japan.