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In page St. Louis:

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A few civic buildings were constructed during the early 19th century. The original St. Louis courthouse was built in 1826 and featured a Federal style stone facade with a rounded portico. However, this courthouse was replaced during renovation and expansion of the building in the 1850s. The Old St. Louis County Courthouse (known as the Old Courthouse) was completed in 1864 and was notable for having a cast iron dome and for being the tallest structure in Missouri until 1894. Finally, a customs house was constructed in the Greek Revival style in 1852, but was demolished and replaced in 1873 by the U.S. Customhouse and Post Office.[citation needed]