N the sentence "We not only preserve important historic sites within national park boundaries, but also work beyond those boundaries to ensure that everyone's history is saved," the word preserve is a . In the sentence "Whether you want to visit an iconic historical park, discover American stories, or journey through a natural preserve, we hope you discover something new about history during your visit," the word preserve is a

"We not only preserve important historic sites within national park boundaries, but also work beyond those boundaries to ensure that everyone's history is saved."

Preserve here means: to take care of, to make sure nothing happens to it, to keep something safe

"Whether you want to visit an iconic historical park, discover American stories, or journey through a natural preserve, we hope you discover something new about history during your visit."

Preserve here means: a special place in nature, place where nature is protected, including all plants and animals

Explanation:

Preserve has multiple different meanings.