Astoria Column

The Astoria Column is a tower in the northwest United States, overlooking the mouth of the Columbia River on Coxcomb Hill in Astoria, Oregon. Built 90 years ago in 1926, the concrete and steel structure is part of a 30-acre (12 ha) city park. The 125-foot (38 m)-tall column has a 164-step spiral staircase ascending to an observation deck at the top and was added to the National Register of Historic Places on May 2, 1974.

• http://en.wikipedia.org/wiki/Astoria Column