Ceremony opens new National Diet Building in Tokyo, Japan

The Japanese diet is completed after 18 years. The Royal Prince, led by the emperor's youngest brother, visits the capital where crowds are kept at a distance. A hand-picked audience gathers at 3800 Premier for an address celebrating the completion of a magnificent building, which is an eighth of a mile long and built entirely of Japanese materials.

What is the significance of the completion mentioned in the text?

Who is leading the Royal Prince as mentioned in the text?

What does the text suggest about the location of the nearest crowd?

What type of audience is mentioned in the text?

What is described as being an eighth of a mile long?