What historical landmark is located in Nebraska and is a National Historic Site?

The Nebraska City Historic District is a designated National Historic Site that highlights the area's significance in American history. It includes a collection of historic buildings and landmarks that reflect the development of Nebraska City, particularly during the westward expansion. The site is recognized for its cultural and architectural contributions, showcasing the historical evolution of the region as a key point for pioneers traveling westward.

In contrast, while the Oregon Trail is an important historical route and has many associated sites, it is not a single National Historic Site on its own. Fort Robinson is indeed a significant historical site, particularly related to the history of the U.S. military and Native American relations, but it has different designations than that of a National Historic Site. The Custer County Courthouse also has historical importance, but it is not recognized in the same capacity as a designated National Historic Site.