The Annie Riggs Memorial Museum is open six days a week, and is located at the corner of Main and Callaghan (number 3 on the historical tour). Visitors can experience a thriving desert garden at the back of the museum, inviting benches on the wrap-around porches and an interior courtyard with a restored Pecos County buggy.

One of the recreated hotel rooms contains an iron bed that Annie ordered from Sears and Roebuck for $6.75, and shows what a guest would have encountered in 1905. In the kitchen is the first electric stove in Fort Stockton, purchased by Annie in 1922. Other exhibit areas are dedicated to archaeology, geology, religion, ranching, Hispanic heritage, pioneers, and early businesses. In the courtyard sits and early 1900's buggy, and the East grounds offer a view of our native Texas garden

The museum houses a gift shop with Texana and Western items and an excellent book selection. The two volume Pecos County History books are still available on request.

Founded in 1954, the goal of the Fort Stockton Historical Society is to preserve, restore, and utilize the historical past. In 1955, the fourteen heirs of Annie Riggs deeded the Riggs Hotel to the Society to be operated as a museum. Named in her honor, the Annie Riggs Memorial Museum opened in November of the same year.

Six local businessmen initiated construction of the building about 1900. It opened in 1901 as the Koehler Hotel. Annie Riggs purchased the hotel in 1904 and operated the hotel/boarding house until shortly before her death on May 17, 1931.

The Society also manages Historic Fort Stockton (1867-1886).