Noyes Laboratory of Chemistry

Harker Hall, also known as the Chemical Laboratory, is a historic building on the campus of the University of Illinois at Urbana–Champaign in Urbana, Illinois. Built in 1877, the building originally served as the university's chemical laboratory. Architect Nathan Clifford Ricker designed the Second Empire building, which originally featured a mansard roof. In 1896, a lightning strike set the roof on fire, and architect James White replaced it with a hip roof. The building was named Harker Hall in honor of Oliver A. Harker, who served as dean of the university's law school from 1903 to 1916. Until it stopped hosting classes, the hall was the oldest classroom building at the university.The building was added to the National Register of Historic Places on November 19, 1986.

The Natural History Building is a historic building on the campus of the University of Illinois at Urbana–Champaign in Urbana, Illinois. Built in 1892, the building originally housed the university's departments of botany, zoology, and geology. In addition to classroom space, the building also included a natural history museum. Architect Nathan Clifford Ricker designed the High Victorian Gothic building. The red brick building has a rough stone foundation and is decorated with colored brick and stone. The steep roof is supported by a timber truss system; the exposed trusses create a coffered ceiling on the interior.The building was added to the National Register of Historic Places on November 9, 1986. In 2010, it was evacuated due to structural deficiencies. After an extensive, $79 million renovation, it reopened in August 2017 and now houses the School of Earth, Society, and Environment (SESE) including the Departments of Atmospheric Sciences, Geology and Geography and Geographic Information systems, as well as teaching space for the School of Integrative Biology (SIB). In 2019, the building received Leadership in Energy and Environmental Design Gold status for its renovation being conducted in an environmentally efficient manner, which included using renewable materials, utilizing energy-efficient technology, and focusing on natural lighting.

The Illini Union, located at 1401 West Green Street in Urbana, Illinois, on the campus of the University of Illinois at Urbana–Champaign, is the student union for the University. The building was dedicated on November 1, 1941, as the campus's home for student organizations, meetings, and student programs and activities, replacing University Hall. It was constructed in cooperation with the University of Illinois Foundation, which secured funding for the construction through a $525,820 Public Works Administration grant and a $656,000 loan which was later repaid through student fees.Today, Illini Union contains the Illini Union Hotel, a credit union, a convenience store, information services, CITES (Campus IT) instructional facility, quick-service restaurants, a bowling alley, arcade, student performance spaces, and office space for Registered Student Organizations, student government, Student Legal Services, Student Tenant Union, LGBT Resource Center, and Union administration. The Illini Union Board serves as a campus-wide programming organization and as the advisory Board for the Illini Union Director.

The Busey–Evans Residence Halls, historically known as the Women's Residence Hall and the West Residence Hall respectively, are historic dormitories at the University of Illinois at Urbana–Champaign.

The Channing-Murray Foundation, resides in the former Unitarian Church at 1209 West Oregon Street in Urbana, Illinois. It is the Unitarian Universalist campus ministry at the University of Illinois at Urbana-Champaign. It includes a chapel and a vegetarian restaurant, Red Herring. The Foundation was established in 1954 after a merger between the Unitarian and Universalist churches in Urbana. At the time, it was also as a merger of the Murray Club of the Universalist Church in Urbana, and the Young People's Club or Unity Club of the Unitarian Church. The building was constructed in 1908 as the Unitarian ChurchThe Unitarian Church of Urbana building is architecturally significant, with design by Root & Siemens, and was added to the National Register of Historic Places in 1991.

The English Building, previously known as the Woman's Building and Bevier Hall, is a historic structure on the campus of the University of Illinois Urbana-Champaign. It is located on the west side of the Main Quad between Lincoln Hall and the Henry Administration Building. The original portion of the English Building, designed by McKim, Mead & White, was completed in 1905 and subsequently expanded in 1913 and 1924. The distinctive columned front, which faces the Main Quad, dates to the 1913 addition. Since 1956, the English Building has been home to the university's Department of English.

Altgeld Hall, located at 1409 West Green Street in Urbana, Illinois on the University of Illinois Urbana-Champaign (UIUC) campus, was built in 1896–97 and was designed by Nathan Ricker and James M. White of the university's architecture department in the Richardsonian Romanesque style. Planning for the building began during the Illinois governorship of John Peter Altgeld. The building was originally the University Library, and received major additions in 1914, 1919, 1926, and 1956. From 1927 to 1955 it was used by the College of Law, and from 1955 on by the Department of Mathematics and the Mathematics Library. The University Chime in the bell tower – which marks the hours, half hours, and quarter hours and plays a ten-minute concert every school day from 12:50–1:00 p.m. – was installed in 1920. The building was officially named "Altgeld Hall" in 1941. Altgeld Hall was added to the National Register of Historic Places on April 17, 1970.

The Grainger College of Engineering is the engineering college of the University of Illinois at Urbana-Champaign. It was established in 1868 and is considered one of the original units of the school. Every engineering program in the college is ranked among the best in the US and in the world. The department has historically spearheaded worldwide innovation in technology, with inventions such as the transistor, the integrated circuit, the LED, the first web browsers (Mosaic and Netscape), and JavaScript all produced by students, faculty or alumni of the college. Engineering alumni founded Mozilla, AMD, PayPal, Yelp, YouTube, Tesla and Oracle.

Engineering Hall is an administrative building at the University of Illinois at Urbana–Champaign. It is located in the south end of the Bardeen Quadrangle on Green Street in Urbana, Illinois, facing the Illini Union. Engineering Hall serves all disciplines within the UIUC College of Engineering and is well known for representing the school's colors with its orange bricks and blue roof. In addition to many offices and conference rooms, Engineering Hall also includes two computer labs and four lecture halls. Engineering Hall also houses many engineering-based student organizations in its offices.

Louise Freer Hall, also known as the Women's Gymnasium, is a historic building on the campus of the University of Illinois Urbana-Champaign. Built in 1930, it was the last of the university's buildings designed by Charles A. Platt, who was responsible for the university's overall plan. Like most of Platt's designs for the university, the building has a Georgian Revival plan. The gymnasium originally provided expanded facilities for the women's physical education department, which had outgrown its space in the Woman's Building. The new gymnasium's facilities included two general-purpose spaces, several specialized facilities, and a physical education laboratory. Louise Freer, the women's physical education director for whom the building was later renamed, added a lounge area in 1932 to provide a social space in the building. The building is still used as a gymnasium and hosts intramural sporting events and physical education classes.Freer Hall has served as the home venue for the Illinois Fighting Illini women's swimming and diving team.The building was added to the National Register of Historic Places on February 5, 2003.

The Alma Mater, a bronze statue by sculptor Lorado Taft, is a beloved symbol of the University of Illinois Urbana-Champaign. The 10,000-pound statue depicts a mother-figure wearing academic robes and flanked by two attendant figures representing "Learning" and "Labor", after the university's motto "Learning and Labor." Sited at the corner of Green and Wright Streets at the heart of the campus, the statue is an iconic figure for the university and a popular backdrop for student graduation photos. It is appreciated for its romantic, heraldic overtones and warmth of pose. The statue was removed from its site at the entrance to the university for restoration in 2012 and was returned to its site in the spring of 2014.

The Foellinger Auditorium, located at 709 S. Mathews Avenue in Urbana, Illinois on the campus of the University of Illinois Urbana-Champaign, is a concert hall and the university's largest lecture hall. It is the southernmost building on the main quad. Its size and its dome make it one of the university's most recognizable buildings. The building was completed in 1907 and was designed by Clarence H. Blackall, a noted theatre designer, in the Beaux-Arts style. The building is essentially a circle with a 120-foot diameter covering 17,000 square feet, with a large vestibule on the north side, and 396 lights in its copper dome.Originally dedicated to the composer Edward MacDowell, the building was rededicated on April 26, 1985, in honor of Helene Foellinger, whose gift to the university enabled the facility to undergo a major renovation.