Teapot Dome Service Station, Washington

This little gas station was built in 1922, a commentary on the Teapot Dome scandal involving President Harding and a federal petroleum reserve in Wyoming (the reserve still exists, operated by the Department of Energy). Although no longer in operation, at one time it was considered one of the oldest gas stations still in use in the country, surviving in part because it was moved in 1978 to be closer to the interstate. In 2012, it was moved once again to its current location, where it now serves as a visitor center for the town of Zillah. Washington is also said to be the birthplace of gas stations, and a plaque marking the site of the nation's first filling station can be found in Seattle's Waterfront Park.