Timeline of Boulder, Colorado

The Boulder County Courthouse is a historic building on Pearl Street in Boulder, Colorado, built in 1933. The courthouse is a contributing property to the Downtown Boulder Historic District, listed on the National Register of Historic Places in 1980. In 2018, additional information about the building was added to the documentation of the district.

The Pearl Street Mall (also referred to as Pearl Street, or Downtown Boulder) is a four-block pedestrian mall in Boulder, Colorado. The pedestrian area stretches from 11th Street to 15th Street along Pearl Street and is home to a number of businesses and restaurants as well as the Boulder County Courthouse.

The Hotel Boulderado is located at 13th and Spruce St. in downtown Boulder, Colorado. It opened its doors on New Year's Day 1909. The original 1908 Otis Elevator is still in operation.As one of the first Boulder hotels, it is located in the heart of downtown. The hotel's name comes from the words "Boulder" and "Colorado" so no guest would forget where they had stayed. The hotel is listed on the National Register of Historic Places. Hotel Boulderado is a member of Historic Hotels of America, the official program of the National Trust for Historic Preservation.The Hotel Boulderado houses three restaurants. Located off of the main lobby are Spruce Farm and Fish, a fine-dining restaurant, and the Corner Bar, a more casual eatery. The basement contains a speakeasy-style bar, License No. 1, which recently replaced Catacombs. All three restaurants share a kitchen.The Hotel Boulderado appears in Stephen King's novel Misery.

The First Baptist Church of Boulder, at 1237 Pine St. in Boulder, Colorado, was built in 1925-26. It was listed on the National Register of Historic Places in 2004. It is a brick L-shaped building "central three-story square tower is located at the inside corner of the "L" and has the pointed arch main entrance with heavy, paneled, glazed, wooden, double doors. The tower is topped with a pre-cast concrete belfry with such ornate details as a crenellated parapet, quatrefoils, corner piers, and large lancet openings with smaller lancet shapes in the tracery."It was deemed significant as "excellent example of the Late Gothic Revival style. Exhibiting all of the elements of this early 20th century style in its square tower, decorative quatrefoils, pointed-arch windows and doors, and buttresses,

The Carnegie Library in Boulder, Colorado is a building from 1906. It was listed on the National Register of Historic Places in 1979. The building is now known as the Carnegie Library for Local History, and is a branch of the Boulder Public Library. The library contains an area of 4,000 square feet (370 m2).

The Adventure Film Festival is an international film festival in Boulder, Colorado. Started in 2004 by local climber Jonny Copp who was killed in an avalanche in 2009 while on an expedition in China, the festival predominantly screens films on adventure, environmental activism, and the outdoors.

The Boulder Dushanbe Tea House was a gift from Mayor Maksud Ikramov of Dushanbe to the city of Boulder, Colorado.

The Boulder Public Library is the public library of Boulder, Colorado in the United States. The main branch and the Carnegie Branch Library for Local History are located in downtown Boulder, while the George Reynolds and Meadows Branches are in south Boulder.

The Downtown Boulder Historic District, in Boulder, Colorado, is a 48 acres (19 ha) historic district which was listed on the National Register of Historic Places in 1980.It includes a surviving historic commercial area of Boulder, including Pearl Street between 9th and 16th Streets (part or all of what is now the Pearl Street Mall) and parts of Walnut, Spruce, and Pine Streets. It also includes the historic Boulderado Hotel.The township of Boulder was created as a supply center for miners in the Pike's Peak Gold Rush in 1858–59. About 70 cabins were built along Pearl Street in 1859, all of which were eventually replaced by more substantial commercial and other structures. In 1980 the district was deemed "significant because of its association with the evolution and development of business and commerce in the city which has long served as the economic center of the Boulder Valley and surrounding communities. The district is also significant for its architectural features which manifest the salient characteristics of late nineteenth/early twentieth century commercial design." Then, the 168 properties in the district included "125 buildings that contribute to the historic and architectural integrity of the district, 21 more modern structures compatible with the older fabric," and several intrusions, parking structures, and empty lots. The National Register designation provided limited protection, however, and about 15 percent of the historic buildings were lost. In 1999 the district was designated a Boulder Historic District, providing further protection.Selected contributing buildings include: IOOF Building Boulder Post Office, separately listed on the National Register Boulderado Hotel, separately listed on the National RegisterGuided walking tours of historic downtown Boulder are available in summer months.

Andrews Arboretum is a small arboretum located on the east side of Broadway between Grandview and Marine Streets in Boulder, Colorado, United States. It is open every day free of charge. The arboretum was established in 1948 by Miss Maud Reed, a former botany teacher at Boulder High School. At her request, the arboretum was named after Darwin M. Andrews, a horticulturist from Boulder. In 1989 the arboretum was acquired by Boulder's Parks and Recreation Department, and is now managed by its Forestry Division. It contains native evergreens, cultivated shrubs, groundcovers, and exotic trees.

Highland School, also or previously known as Highland-Lawn School, is an 1892 building at 9th Street and Arapahoe Avenue in Boulder, Colorado. It was the fourth school built in Boulder and was used as a school until 1971. The Highland School Building was converted to use as an office building and placed on the National Register of Historic Places in 1978. The building is constructed of red brick and blond sandstone mined from local quarries.Highland School was threatened with demolition in 1971. Civic leaders opposed to the demolition of the School and nearby Central School (Boulder, Colorado) formed Historic Boulder, Inc. to advocate for its preservation.The school was designed by the Denver firm of Varian and Sterner in 1890. It was doubled in size in a 1923 extension which was designed to be entirely compatible to the original building.

Boulder High School is a high school in Boulder, Colorado, United States. It is part of the Boulder Valley School District. Boulder High School was founded in 1875 as a preparatory school to the University of Colorado. In 1876, it was the first high school in Colorado to graduate a class. The school is located in downtown Boulder, adjacent to the university’s campus and four blocks from the Pearl Street Mall.