Honolulu is the largest “city” in the world, because according to the Hawaiian Constitution, every unnamed island belongs to the county that belongs to Honolulu. Thus, almost the entire island of Oahu belongs to Honolulu, as well as the uninhabited Northwest Islands. Honolulu is more than 2,414 km long, which is commensurate with the distance from Los Angeles, California to Denver, Colorado.
Oahu is home to the world’s largest windmill, installed on the roof of a 20-story building. It has 2 blades, each 122 m long.
The Forster Botanical Garden, located near Iolani Palace, was built in 1855 and is the oldest garden in Hawaii.
Waikiki Beach is visited by 72,000 people daily, representing 44% of the state’s total visitors.
Iolani Palace, located in downtown Honolulu, is the only royal palace in the United States.
Iolani Palace was illuminated four years earlier than the White House.
Honolulu is the second most expensive city in the United States after Anchorage (Alaska).