A nation is defined by its unity . Though there are differences among us , our union as a country is shaped by the history of the culture within our borders . Take a journey and explore America ’ s foundation , from monuments to national historical parks , and rediscover the beauty of our lands .
When it comes to differentiating between what is classified as a landmark in America and what isn ’ t , several questions have to be answered : 1 . Is it an object , structure , building , or site ? 2 . Is it natural or manmade ? 3 . Is it officially recognized by the U . S . government ?