Exiting the Philosopher’s Path, the Oku Japan group took a subway to Nijo Castle, one of Kyoto’s “must sees” with its world-famous Nightingale Floors. A Nightingale floor (or momoyama) was designed to make a chirping sound when walked on and primarily used in hallways of some temples and palaces. Flooring nails would rub against a clamp which would then chirp or squeak for security against intruders. The most famous Nightingale Floor is in Nijo Castle. Unfortunately, no photographs or video is allowed inside to show what I think is the best part of Nijo as visitors squeak their way around.
Nijo Castle was built in 1603 by Tokugawa Ieyasu, who founded the Edo shogunate which ruled Japan from the beginning of the Seventeen Century, to use whenever he visited Kyoto.