The Molly Brown House Museum is a house located at 1340 Pennsylvania Street in Denver, Colorado, United States that was the home of American philanthropist, socialite, and activist Margaret Brown. Brown was known as "The Unsinkable Molly Brown" because she survived the sinking of the RMS Titanic. The museum now located in her former home presents exhibits interpreting her life and that of Victorian Denver as well as architectural preservation. The house was listed on the National Register of Historic Places in 1972.