At the beloved attraction in San Francisco Bay, visitors could scarcely believe President Trump had suggested turning Alcatraz back into a penitentiary.

President Trump is dreaming of reopening Alcatraz as a prison, but making it happen could fare more like a nightmare with a really expensive price tag. Why it matters: The project, which would heavily alter San Francisco's landscape and tourism economy,

The origin story of Alcatraz's name is a complicated mix of language, a history that dates back to the first Europeans to explore the coast of California, and, a flock of seabirds.