Rock Island Township, Rock Island County, Illinois

The Quad City Botanical Center is a set of botanical gardens located next to the Mississippi River at 2525 4th Avenue, Rock Island, Illinois. It is open daily except major holidays; an admission fee is charged. The center opened on June 20, 1998. Its gardens include: Sun Garden conservatory (6,444 square feet) - includes sweet acacia, allspice, arrowhead, bamboo, banana, bird of paradise, bromeliads, cacao, cardamom, cassava, coconut, coffee, ferns, frangipani, Arabian jasmine, lychee, orchids, palms, papaya, papyrus, pineapple, sapodilla, vanilla, and ylang-ylang, as well as a 14-foot (4.3 m) waterfall, reflecting pools with koi, and a 70-foot (21 m) skylight. Scott County Regional Authority Conifer Garden (established 2001) - over 40 conifers from the collection of Justin C. Harper, including cultivars such as Ginkgo biloba 'Todd's Broom', Taxus cuspidate 'Fastigiate Aurea', and Thuja standishii. Physically Challenged Garden (established July 2003) - planting beds at varying heights for gardeners with physical limitations. Scrambled Alphabet Garden - for children.

Lincoln School was a historic building located in Rock Island, Illinois, United States. It was designated a Rock Island Landmark in 1984, individually listed on the National Register of Historic Places in 1985, and became part of the Broadway Historic District when it was listed on the National Register in 1998. It was torn down in 2012 and delisted from the National Register in 2020.

The former First Church of Christ, Scientist, is an historic Christian Science church building located at 700 22nd Street, Rock Island, Illinois, United States. Designed by architect William C. Jones of Chicago in the Palladian style, it was built between 1914-1915. Its exterior walls are of brick covered by Bedford limestone. Its superimposed front portico is supported by six 2 story columns with egg-and-dart capitals. Its dome actually consists of 2 domes: an outer dome and an inner dome which are separated by a space for lighting fixtures and maintenance. The inner dome consists of some 8,000 colored fish scale glass panes on a wooden support structure. The inner dome is similar to the inner dome of First Church of Christ, Scientist in Kalamazoo, Michigan, which was designed by William C. Jones in 1913.The church building, the second one built in Rock Island by the congregation, is a Rock Island Landmark as designated by the city in 1993. It is also a contributing property in the Broadway Historic District, which was added to the National Register of Historic Places on August 14, 1998. It is one of 4 churches in the district and the only Palladian building.

The Robert Wagner House is an historic building located in Rock Island, Illinois, United States. It was designated as a Rock Island Landmark in 1984, individually listed on the National Register of Historic Places in 1990, and became part of the Broadway Historic District on the National Register in 1998.

The Connor House is an historic building located in Rock Island, Illinois, United States. It was designated a Rock Island Landmark in 1987. The house was individually listed on the National Register of Historic Places in 1988, and it was included as a contributing property in the Broadway Historic District in 1998.

Circa 21 Dinner Playhouse, Formerly known as The fort Armstrong theater, is an historic building located in downtown Rock Island, Illinois, United States. It opened in 1920 and it was individually listed on the National Register of Historic Places in 1980. In 2020 it was included as a contributing property in the Downtown Rock Island Historic District.It was commonly referred to as the Fort Theater. The theater was named for Fort Armstrong, a fortification that sat in the middle of the Mississippi River near the present location of the Rock Island Arsenal. Its Waitstaff, The Bootleggers, are 1 of just 2 performing Waitstaffs in the USA

Broadway Historic District is a nationally recognized historic district and neighborhood in Rock Island, Illinois, United States. It is roughly bounded by 17th and 23rd street, 5th and 7th avenues, Lincoln Court, and 12th and 13th avenues. Containing more than 550 Victorian homes as well as other buildings, it known for its Great Unveiling program, which encourages the removal of artificial siding from historic houses.On August 14, 1998, it was added to the National Register of Historic Places.

The Rock Island Public Library is located in downtown Rock Island, Illinois. The Rock Island Public Library traces its beginnings to 1872, making it one the oldest public libraries in Illinois. However, fee-based public libraries started in 1855 in Rock Island and have contributed to the history of Illinois' original library system.

Fort Armstrong Hotel is a historic building located in downtown Rock Island, Illinois, United States. It was individually listed on the National Register of Historic Places in 1984. In 2020 it was included as a contributing property in the Downtown Rock Island Historic District. The hotel was named for Fort Armstrong, a fortification that sat in the middle of the Mississippi River near the present location of the Rock Island Arsenal. The building now serves as an apartment building.

The Sala Apartment Building is a historic building located in Rock Island, Illinois, United States. It was individually listed on the National Register of Historic Places in 2003. In 2020 it was included as a contributing property in the Downtown Rock Island Historic District.

The Potter House is a historic building located in Rock Island, Illinois, United States. It was designated a Rock Island Landmark in 1987, listed individually on the National Register of Historic Places in 1989, and the house was included as a contributing property in the Broadway Historic District in 1998.

Villa de Chantal Historic District was a national recognized historic district located in Rock Island, Illinois, United States. The property was designated a Rock Island Landmark in 1994, and it was listed as a historic district on the National Register of Historic Places in 2005. Its local landmark status was removed on November 12, 2007. It was removed from the National Register in 2012. The Villa de Chantal was a Catholic girl's boarding and day school operated by the Sisters of the Visitation. The school closed in 1978 and the building was largely destroyed in a fire in 2005. The property now houses the Rock Island Center for Math & Science of the Rock Island-Milan School District #41.