Believe it or not, in order to build a lighthouse on the northernmost point of Hawaii’s inhabited islands, the U.S. purchased 31 acres of gorgeous coastal land in Kilauea in 1909 for a mere dollar. You read that right—one single dollar. The Kilauea Point Lighthouse was completed in 1913 and operators used it to guide commercial ships (heavy with treasures from the far east) safely to harbor for over 60 years. In 1976, however, it became an automated beacon for boats and aircraft. Today, it’s on the National Register of Historic Places and proudly stands as a beloved monument of Hawaiian history.