- ...that Piscataway Park was created to prevent development and protect the view across the Potomac River from Mount Vernon (pictured)?
- ...that Charles N. Haskell was the first governor of Oklahoma, and he played a crucial role in drafting the Oklahoma Constitution?
- ...that the 1040-foot-long Starrucca Viaduct in Lanesboro, Pennsylvania was the largest and most expensive stone railway viaduct when built in 1848, and is still in use by the Norfolk Southern Railway?