In the evolving world of themed construction, the push for faster builds, higher quality, and more immersive detail has given rise to a new standard: modular construction. This CASTO Corner feature explores how modular strategies — including prefabricated scenic panels, off-site finishing systems, and plug-and-play components — are redefining how themed environments come to life. Drawing from major projects like Universal Studios Beijing and Epic Universe, we break down the full lifecycle of modular builds, from design and manufacturing to transportation, installation, and final finishes. Whether you're a designer, contractor, or creative director, this article reveals how modular thinking enhances constructability and protects creative vision.