Browse St. Louis City, MO houses for sale and explore a dynamic, historic metropolis along the Mississippi River. This city is known as the “Gateway to the West,” thanks to its iconic Gateway Arch. The landmark stands as a reminder of St. Louis’s role in America’s westward expansion. Beyond its history, St. Louis offers a rich cultural heritage shaped by a diverse population. As a result, the city’s unique spirit shines through its neighborhoods, architecture, and incredible food scene.