Nonlinear optical imaging of nanoscale ferroelectric domains in Ba(Zr,Ti)O3 films: There is just something magical about utilizing ultrafast photons to image polymorphic nanodomains in ferroelectric films, which show the high-performance energy storage. The nanoscale structural distortions and interfaces are usually undetectable by conventional technologies, but the ultra-adaptive nanodomains are the most crucial for us to understand the unlaying mechanism.