Tokyo Tower, which is essentially an orange Eiffel Tower imitation, is the second tallest structure in Japan, after the Tokyo Skytree was built in 2012. It’s an observation deck and a broadcast antenna that sits right behind the Zozo-ji temple.
Like the Meiji Shrine, parts of the Tokyo Tower is under renovation for the 2020 Summer Olympics. Most of this construction is focused on the observation decks, where you can catch a glimpse of Mount Fuji in the distance on a good day. Luckily, there are plenty of things to do at the foot of the tower.
If you are planning to visit with children FootTown, which sits at the base of Tokyo Tower offers a variety of activities. The base has a few restaurants and cafes, as well as museums like the Guinness World Records Museum Tokyo, the Tokyo Tower Wax Museum and the Tokyo Tower's Trick Art Gallery. There is also the One Piece Tower, which is an indoor amusement theme park for the popular Japanese manga.
If you’re more into culture and history and aren't traveling with children, you can probably pass on Tokyo Tower. With the exception of the distant, distant view of Mount Fuji, I found the view of the tower from elsewhere around the city to be more interesting than the view from the tower's observation deck. I'd recommend saving the price of the admission ticket for the Tokyo Skytree instead.