Located in downtown Indiana, Pennsylvania, is historical Sixth Street. This walking tour takes visitors past 15 notable buildings all located within a four-block area. The tour features a Federal style structure house dating back to 1823, an eclectic, two-story brick house that merges two popular styles: Second Empire and Italian Villa. A stone, Gothic Revival church boasts weatherings, buttresses, and large pointed stained glass windows with tracery. Several of the buildings are listed on the National Register of Historic Places including The Old Indiana County Courthouse, with a clock tower and the Silas M. Clark House characterized by the use of S-brackets, a low pitched gable roof, a bay window, round-headed windows, and a tall, square tower.