searchy pants is where you can find it
Found it the KidzSearch wiki
https://www.kidzsearch.com/wiki/Gateway_Arch
The Gateway Arch is a metal structure in St. Louis, Missouri that stands 630 feet.[1] A tram allows people to go to the top of it. Each year, about 4 million people visit the Gateway Arch. It cost about $13 million to make the arch and over $3 million to make the transportation system