One of these four National Treasures is the Inuyama Castle, whose 25-meters-tall tenshu (main keep), built in 1601, is one of the most beautiful such structures in Japan.
EXIF info:
Nikon D90
Lens: 8-16mm F/4.5-5.6G
Focal Length: 16mm
Aperture: F/5.6
Shutter Speed: 1/1000s
ISO Sensitivity: ISO 200