St. Elizabeth’s Church was designed by Brother Adrian, O.F.M. of the Sacred Heart province, in the German Gothic style in 1898.  It is constructed of rhyolite quarried at Castle Rock.

The 1926 St. Dominic’s Church, designed by noted Denver architect Robert Willison, is significant as an important local example of ecclesiastical architecture executed in the Late Gothic Revival style. 

St. Andrews Episcopal Church, originally named Trinity Memorial Church, was designed in the Gothic style in 1909 by architect Ralph Adams Cram.

Designed by Frank E. Edbrooke, the five-story 1905 warehouse received an additional floor in 1911.  The building is constructed of molded and pressed brick and reflects elements of the Neoclassical Revival style in its massing and trim.  

This key 1.1-mile diagonal transit way, designed by the nationally-known planner George Kessler, symbolizes and commemorates, in planning, design, construction, embellishment, and planting, the City Beautiful movement in Denver.  It also conveys the political leadership and citizen support which made the Denver park and parkway system the city’s historic design legacy. 

The Spangler House is one of a series of six designed by prominent Denver architects William Lang and Marshall Pugh for real estate developer Ralph Voorhees.  For many years, the house was home to Jane Spangler, widow of former Arapahoe County sheriff Mike Spangler.

Joined and widened in 1970, the 1951 steel girder ribbed deck arch bridges are rare surviving structures associated with the early development of the Valley Highway, the predecessor to I-25 through the Denver’s central corridor.

George Kessler and Saco R. DeBoer are credited with the design of the half-mile parkway executed between 1909 and 1913.  The half-mile South Marion and Downing Street Parkways serve as a connection between the Speer Boulevard/Cherry Creek corridor and Washington Park.

The approximately 27-mile long irrigation channel was first surveyed and constructed between 1860 and 1867.  The ditch began in Waterton Canyon, located southwest of Denver, as a diversion of the South Platte River and ultimately terminated in City Park’s Ferril Lake. 

The 1882 Smith’s Chapel is notable for its extensive use of Castle Rock-quarried rhyolite.  Denver architects and builders used rhyolite both as a primary structural stone and for foundation and architectural accents during the late 19th century.  Smith’s Chapel is an early example of the volcanic stone used as a primary structural material with sandstone detailing.