The Imperial Palace or residence of the emperor and the imperial family; in modern usage often refers specifically to the Tokyo Imperial Palace.
皇居は東京の中心にあり、東御苑など一部は一般に公開されている。
The Imperial Palace is in central Tokyo, and parts like the East Gardens are open to the public.
毎年、天皇誕生日には皇居で一般参賀が行われる。
Every year, public visits to the Imperial Palace are held on the emperor's birthday.
皇居の周りはランニングコースとして人気がある。
The area around the Imperial Palace is popular as a running course.