These are the Ha'iku Stairs on the island of Oahu in Hawaii. They were first built as a ladder to reach the top of the ridge during World War II, when a radio transmitter was installed on the top of the hill. Later the wood was replaced with metal steps, 3,922 of them! The stairs are now closed to the public, but hikers still risk trespassing charges to try them out. See more pictures at Atlas Obscura. Link
These are the Ha'iku Stairs on the island of Oahu in Hawaii. They were first built as a ladder to reach the top of the ridge during World War II, when a radio transmitter was installed on the top of the hill. Later the wood was replaced with metal steps, 3,922 of them! The stairs are now closed to the public, but hikers still risk trespassing charges to try them out. See more pictures at Atlas Obscura. Link
The hikers were very rude and annoying. Please don't climb the stairs.