The Fuji TV Building

Above, the Fuji TV Building in Odaiba.  Photo by Armand Vaquer.

The Fuji Television Building is located in the Odaiba section of Tokyo.

The Fuji Headquarters Building is across the street from the Aqua City Shopping Mall.  Both the mall and the Fuji TV headquarters Building were featured in Godzilla x Megaguirus (2000). The Fuji TV Headquarters was also shown in the background in Godzilla x Mothra x Mechagodzilla: Tokyo S.O.S. (2003) as Godzilla rises out of Tokyo Bay.

The building took almost three years to build and it was designed by Japanese Architect Kenzo Tange. It opened in 1997.

According to Japan-Guide.com:

The headquarters of Fuji Television, one of Japan's private, nationwide TV stations. You can see some exhibits on popular programs, buy Fuji TV goods at a shop and access the futuristic looking building's observatory deck housed in the sphere shaped part of the building. 

Odaiba is spotlighted on page 25 of The Monster Movie Fan's Guide To Japan.

For more on the Fuji Television Network, go here.