One of the most spectacular Karamon gates, lavishly adorned with golden ornaments and sculptures is at the the Nijō castle in Kyoto, at the entrance of the Ninomaru palace.
EXIF info:
Nikon Df
Lens: 24-70mm F/2.8G
Focal Length: 48mm
Aperture: F/6.3
Shutter Speed: 1/160s
ISO Sensitivity: ISO 400