The crossword solutions for the term 'Chicago Sights' include ELS, which stands for the iconic Els of Chicago. The Els are a network of elevated rapid transit rail lines that serve the city of Chicago and its surrounding suburbs. They are one of the most recognizable features of the city's skyline and have been in operation since the late 19th century. The Els are an important part of the city's public transportation system and provide commuters with a convenient way to get around the city.