The 9/11 memorial is a monument that you will remember. The monument is located in New York City at the World Trade Center. In honor of the nearly 3,000 people who died on that day they built a monument right were the Twin Towers used to be. It costed $700 million to build and they got the money through donations! The monument has two square holes dug where the Twin Towers used to be. They are pools and have waterfalls streaming into them. In order to go into the museum you have to go through steel and glass doors that used to be part of the Twin Towers. The 9/11 memorial is a amazing monument with sites that you will never