Chicago, officially the City of Chicago, is the most populous city in the U.S. state of Illinois and the third-most populous city in the United States. Located on the southwestern shores of freshwater Lake Michigan, Chicago is the principal city of the Chicago metropolitan area, often referred to as Chicagoland. The city is an international hub for finance, culture, commerce, industry, technology, education, communications, and transportation. It was founded in 1837 and quickly grew into a major metropolis due to its strategic location for trade and transportation, especially after the opening of the Illinois and Michigan Canal. Chicago is renowned for its bold architecture, vibrant arts scene, and diverse culinary landscape, from deep-dish pizza to Michelin-starred restaurants. The city also boasts numerous parks and green spaces, including the iconic Millennium Park and Lincoln Park. Its economy is diverse, with strong sectors in manufacturing, financial services, healthcare, and technology. Chicago is also home to several world-class universities and research institutions, contributing to its intellectual and innovative environment. Despite its urban density, Chicago offers a variety of distinct neighborhoods, each with its own unique character and community feel.