Taking the stairs is good for heart health, doctors say.

At Johns Hopkins University’s Hackerman Hall, it can also improve your mood.

A flight of steps on the building’s north side was recently transformed into a giant piano of sorts that serenades—and sometimes surprises—with a burst of notes as people walk from the first floor to the second (or vice versa). Think “Big”—as in, Tom Hanks in FAO Schwarz.

https://www.youtube.com/watch?v=23tNqp5wzGI

The “piano staircase” is the brainchild of members of the Hopkins Robotics Club, a new organization of about 100 students with majors ranging from electrical and computer engineering to mechanical engineering, computer science, and the humanities.

Excerpted from The Hub. Read more here.