John and Elivera Doud House

The Stoiber-Reed-Humphreys Mansion is located within the Humboldt Street Historic District in Denver, Colorado. The district was listed on the National Register of Historic Places on December 29, 1978. The mansion is considered "the largest and most imposing residence in the district."

Humboldt Street Historic District, or Humboldt Island, is located west of Cheesman Park in Denver, Colorado on Humboldt Street between East Tenth and Twelfth Streets. It was the first residential district to be designated a historic district by the Denver Landmark Preservation Commission in 1972, and is listed as a historic district on the National Register of Historic Places.There are 25 houses in the district built between 1895 and 1920. They were designed by prominent architectural firms, including Willison and Fallis, Marean and Norton, and Barressen Brothers. There district contains houses of Renaissance Revival, Georgian Revival, Colonial Revival as well as simple Foursquare style architecture. Some of Denver's most wealthy and influential people lived in the neighborhood. After Frederick G. Bonfils' mansion was torn down to make way for a fifteen-story apartment house, Denver passed an ordinated to protect Cheesman Park's mountain view from other high-rise buildings. Bonfils and Harry Tammen were owners of The Denver Post and self-made millionaires. Tammen had a Tuscan villa at 1061 Humboldt. Mining millionaires, the Stoibers had the district's showiest mansion, Stoiber-Reed-Humphreys Mansion, of Renaissance Revival-style architecture. Governor William Ellery Sweet lived in a Georgian Revival-style house at 1075 Humboldt.

Cheesman Park is an urban park and neighborhood located in the City and County of Denver, Colorado, United States.

First Congregational Church (also known as Metropolitan Community Church of the Rockies) is a historic church in Denver, Colorado. Its church building was added to the National Register in 1987.The First Congregational Church of Denver was organized in 1864. After several moves and expansion, the church determined in 1905 that it needed to construct a new building, and purchased four lots at 10th Avenue and Clarkson Street for $5,000. The sanctuary was built in 1907 and a fellowship hall wing was completed in 1910.The sanctuary is essentially cubical and has a three-story corner bell tower. With the added social hall wing, the church is 64 by 108 feet (20 m × 33 m) in plan. It was designed by Robert S. Roeschlaub Roeschlaub & Son in what its National Registration nomination terms "Lombardic Revival" style, i.e. its design was inspired by 7th and 8th century Italian Lombard style.The property also includes a 1912 parsonage built in foursquare style.

The Doyle–Benton House was the former residence of James and Daphne Doyle until 1904, where it was later the residence of Frank Benton and family in 1906 until 1970. Mr. Doyle was the founder of the Portland Gold Mine, which is still producing as part of AngloGold Ashanti’s Cripple Creek and Victor Mining Company on the western slope of Pike’s Peak. Mr. Benton was a prominent cattle rancher on the Western Slope and was one of the founders of the National Western Stock Show.

Adolph Zang Mansion is a historic house located at 709 Clarkson Street in Denver, Colorado.

Tears–McFarlane House is a historic house located in Denver, Colorado, that was listed on the National Register of Historic Places on January 11, 1976. It was designed by Frederick Sterner.Railroad attorney Daniel W. Tears and his wife commissioned the construction of the Georgian-style house in 1898. They lived in the house for more than 40 years, and during that time became Denver socialites. In 1937, the house was purchased by Ida Kruse McFarlane and Frederick McFarlane. Ida was an English professor at the University of Denver, who helped restore the Central City Opera House. After her death, Frederick married Lillian Cushing, a dancer and actress, who gave dancing lessons in a studio in the basement.In 1966, it became the residence and offices of Gary Hart, who was then a United States senator. It became the Greater Capitol Hill Events Center in 1977 and is now the Center for the People of Capitol Hill.

Eppich Apartments is an apartment building in Denver, Colorado. The American Craftsman building was designed by Walter Rice, a Denver architect and built by Louis F. Eppich, a Denver real-estate developer. The towers and parapets reflect a medieval influence. The second-floor balconies at the front of the house have oriental elements of design in the intricate frame with butterfly beams. There are also Spanish Colonial design elements in the corbeled pylon and terra-cotta drain pipe. It was built facing the view of the Rocky Mountains and the Colorado State Capitol building, which now also includes Denver's high-rise buildings. Eppich owned the building until 1953. It was listed on the National Register of Historic Places on January 5, 1984.

The Wood–Morris–Bonfils house is a French Mediterranean Revival style house in the Capitol Hill neighborhood of Denver, Colorado. It was built in 1909 or 1911. In 1974 it was listed on the National Register of Historic Places.The house was the home of Guilford S. Wood, and later Andrew S. Hughes, and Helen Bonfils. In the early 1980s it housed the Mexican Consulate, and after 1985 was divided into condominiums. The house was documented by the Historic American Buildings Survey in 1967.

The Cornwall Apartments is a building on the National Register of Historic Places in the Capitol Hill section of Denver, Colorado. The apartments were designed by Denver architect Walter Rice in a Mexican colonial style that capturing a cosmopolitan spirit and gaiety in the unusual architectural elements for 1900, such as its balustrades, mouldings, and varied balconies. Reed made most of the terra cotta trim himself. It may have been the first building of a Spanish-derived architectural style. Other houses of the time were generally of Victorian and European architectural styles. Other architects and designers found that the Spanish style is more appropriate for Colorado's climate. The three-storied building has 21 apartments, a roof garden and full basement. A former ballroom has been in the north tower has repurposed as a penthouse apartment. The other towers were used as "summer gardens". In 1901, the building was described as "the handsomest structure on the Hill" by the Rocky Mountain News.The building's first owner, William T. Cornwall, was a Denver Fire Clay Company executive and a local real estate developer. The building is now condominiums, and the exterior was renovated in 2010.

The Altamaha Apartments, at 1490 Lafayette St. in the Cheesman Park neighborhood of Denver, Colorado, was built in 1902. It was listed on the National Register of Historic Places in 2004. It was designed by architect George L. Bettcher in Italian Renaissance Revival style.It was deemed significant as representing "Denver's early twentieth century adoption of a new form of residential housing-the luxury apartment building. The Altamaha Apartments are also significant under Criterion C, as they embody the distinctive characteristics of the Italian Renaissance Revival style as applied to an apartment building.It has also been known as Alta Court, and in 2020 a sign indicates Alta Court Offices.The listing includes two contributing buildings.

The Boettcher Memorial Tropical Conservatory, located at Denver Botanic Gardens, is an iconic landmark in Denver, Colorado. The tropical conservatory was designed in 1964 by Denver architects Victor Hornbein and Ed White Jr. and opened in 1966. Its structure consists of high, interlaced concrete arches inset with faceted Plexiglas panels, which suitably honor benefactor Claude Boettcher of the Ideal Cement Company. In 1973, it was awarded Denver Landmark status. The Boettcher Memorial Tropical Conservatory incorporates more than 11,000 sq. ft. of plants from tropical and subtropical regions, as well as a fabricated two-story banyan tree that offers a multi-layered view of the tropical forest.