Wartburg, Illinois

Monroe County is a county located in the U.S. state of Illinois. According to the 2020 census, it had a population of 34,962. Its county seat and largest city is Waterloo. Monroe County is included in the St. Louis, MO-IL Metropolitan Statistical Area. It is located in the southern portion of Illinois known historically as "Little Egypt".

Fountain Creek Bridge is a limestone arch bridge which crosses Fountain Creek near Waterloo in Monroe County, Illinois, USA. The bridge was constructed in 1849 and served as a road bridge until the 1920s, when Illinois Route 156 opened on a new bridge. During the nineteenth century, stone arch bridges were commonly built in regions with stone quarries, such as Monroe County; roughly 100 stone bridges were built in the county. The Fountain Creek Bridge is the largest remaining stone arch bridge in the county and the second-largest which was only used by road traffic in the state.The bridge was added to the National Register of Historic Places on December 22, 1978.

Burksville is an unincorporated community in the historic New Design Precinct of Monroe County, Illinois, United States. Originally developed by John P. Brown, Burksville was named in 1857 after John G. Burkhardt, a resident of St. Louis, who opened a store there in 1851. It lies along the old Kaskaskia to St. Louis road off Illinois Route 3, south of Waterloo.

Madonnaville, Illinois is a small unincorporated community in the historic Bluff Precinct of Monroe County, Illinois, United States. It was laid out by Joseph W. Ruebsam, who erected the first building and started a store there shortly thereafter. St. Mary's Catholic Church was built in 1857.

Waterloo High School is a high school in Waterloo, Illinois, and is the only public high school in the Waterloo area.

St. Joe, Illinois is a small unincorporated community in the historic New Design Precinct of Monroe County, Illinois, United States. It is located along the historic road from Kaskaskia to St. Louis, between Renault and Burksville.

Maeystown is a village in Monroe County, Illinois, United States. The population was 150 at the 2020 census.

The Monroe City Mill was a grist mill located in Monroe City, Illinois, an unincorporated community in the historic Bluff Precinct of Monroe County, Illinois, United States. Monroe County was founded in 1816. Prior to that, the area was part of St. Clair County in the Illinois Territory. The Mill was built in 1800 and ceased operation in 1899. The stone foundation, including the water wheel arch, remain today on the original site. The Mill was located on the north bank of the Monroe City Creek, about one quarter mile below its source at a karst spring. The creek provided water to power the mill. The valley created by erosion from the creek is generally referred to as "the Monroe City Hollow." Over the years, the Mill has been referred to by a number of names, primarily reflecting ownership: Kinney's Mill from 1800 until about 1823; James' Mill from about 1823 until 1849; Garretson and Harlow's Mill from about 1850 to 1866; Ziebold's Mill from 1867 until about 1899. It was also generally known as the Monroe City Mill beginning in 1856 when the Town of Monroe City was platted. In 1798, Josiah Ryan built the original mill in the Monroe City Hollow about 2 miles west of the Monroe City Mill site, also on the banks of the Monroe City Creek.

Monroe City is a small unincorporated community in the historic Bluff Precinct of Monroe County, Illinois, United States. As of 2016, the population is approximately 45 people, living in 23 homes. The community is generally considered to comprise the platted towns of Monroe City (1856), Woodville (1857), and the area immediately adjacent to those towns. The core community is located in a valley, or colloquial "hollow," commonly known as the Monroe City Hollow. The central natural feature of the Hollow is the all-season Monroe City Creek. Governmental functions are provided by Monroe County. Electric utilities are provided by the Monroe County Electric Cooperative and public water is offered by the Fountain Water District.

Illinois Caverns is a state natural area in the New Design Precinct of Monroe County, Illinois. It features Illinois Caverns which is alternatively known as Mammoth Cave of Illinois (also Burksville Cave, Egyptian Cave, Eckert Cave). Illinois Caverns is the second-largest cave in Illinois and has more than 9.6 km of passages. The cave has a constant temperature of 58 °F (14 °C), and portions flood during wet weather. Passages can be 20 feet (6.1 m) high and just as wide. It is located off Illinois Route 3, south of Waterloo, near the unincorporated community of Burksville.

Burksville Station is an unincorporated community in the New Design Precinct of Monroe County, Illinois, United States. It grew up around a station on the St. Louis and Cairo Railroad.

New Hanover, Illinois is a small unincorporated community in Monroe County, Illinois, United States. It derives its name from Hanover, Germany, of which many of the immediate area's settlers, including notably Henry B. Stehr, its founder, were natives. It was platted and surveyed by Hugo Ropiquet, county surveyor, January 17, 1860. The first house, a frame dwelling, was built by John Karius about 1845. New Hanover also gave its name to a historic precinct of Monroe County, which was carved out of Bluff, and the former Eagle and Fountain Precincts (later renamed Columbia and Waterloo, respectively) in 1875 and comprised the territory surrounding it.