The heart of Eureka Springs is a two-square mile area in which about 700 structures cling to hillsides held up by 55 miles of retaining walls. This part of town sat virtually undisturbed for decades, with some infill beginning after WWII. Eureka Springs is noted for an abundance of eclectic turn-of-the-century architecture. The entire town was placed on the National Register of Historic Places in 1970. A re-nomination upgrading the town to National Significance occurred in 2005.
