Have you ever seen pictures of really old houses that look like they have pointy roofs made out of straw or grass? Those houses are called "gassho-zukuri" houses, and they are found in two special places in Japan called Shirakawa-gō and Gokayama.
These places have houses that are very important because they are very old - some are over 300 years old! That's older than your grandma or grandpa! The houses are made out of really strong wood and have big, sloping roofs made out of grass or straw. This is because it snows a lot in that part of Japan, and the roofs help the snow slide off so it doesn't get too heavy and break the house.
People used to live in these old houses, but now they are used for tourists to visit and see what life was like a long time ago. The villages have narrow streets and lots of trees and mountains around them. When you visit, you can see how people used to cook, sleep, and do other things a long time ago. It's like going back in time and seeing how people used to live.
It's really important to take care of these old houses because they are part of Japan's history and culture. People from all over the world come to visit Shirakawa-gō and Gokayama to learn about these special places and see the old, unique homes. Maybe one day you can visit too and see the historic villages for yourself!