General:
* Seized
* Taken
* Apprehended
* Secured
* Arrested
* Held
* Confiscated
* Subdued
Figurative:
* Engulfed
* Entranced
* Charmed
* Mesmerized
* Won over
* Hooked
More specific:
* Imprisoned (for a person)
* Captured (for an object)
* Taken prisoner (for a person)
* Conquered (for a city or territory)
The best synonym depends on the specific situation and what you want to emphasize. For example, "captured" could be used to describe taking a prisoner or a photograph, while "seized" might be used to describe taking an object.