Solatube is a way to bring natural light into your house, to make it brighter, or bring light from outside into an internal room. Great for bathrooms like this one, kitchens, hallways and closets. Also known as solar pipes or sun tunnels.

This is a 10" pipe and cost $695 including installation, in November 2021. They also do a larger size that's 14" in diameter. Expect to pay around $150 more for the bigger one.

Similar products are also made by VELUX.