St. Louis, Missouri
A city in the middle of the United States, on the Mississippi River, known for the Gateway Arch.
What is it?
St. Louis is a city in the state of Missouri, USA. It is located on the Mississippi River. It was an important starting point for pioneers traveling west in the 1800s. Today, it is known for the Gateway Arch, a huge stainless steel monument.
Why it matters
St. Louis played a key role in the westward expansion of the United States. The Gateway Arch is a symbol of that history. The city also has many museums and cultural sites.
Where you've seen it
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