I'm generally not afraid of heights, but I have some troubles with transparent floors... So, after I experienced the Tokyo Tower glass floor, even if a transparent cabin was available, I chose a regular one...
EXIF info:
Nikon D90
Lens: VR 18-55mm F/3.5-5.6G
Focal Length: 55mm
Aperture: F/5.6
Shutter Speed: 1/500s
ISO Sensitivity: ISO 320