The courtyard of the Deutsches Museum (German Museum) in Munich features a sundial which is built of white cobblestones in the midst of grey cobblestones. And you act as the gnomon of the sundial yourself. Unfortunately, the scale of the sundial was completely in the shadow, when I was there. But although I chose another motif you can still see the sundial on the floor of the courtyard. It's about 45° left from the opening view of the final panorama.
Luckily there was another interesting scale. It was the start column of the Inter-planetary Walk (Planetenweg) which leads from the Deutsches Museum to the Munich Zoo. The big sphere on top of the column represents the sun. It has a diameter of 1.08 meters (3.54 feet). On the starting column each planet is represented by a circle on the black side of the column in its corresponding size.
If you follow the walk, you'll find another column for each of the planets. In the scale of the walk the size of the earth translates to a sphere with a diameter of 9.9 mm (0.38976 in). The column of the earth is located 116 m (380.58 ft) away from the starting column of the sun. See a full list of the planets on the website of the Inter-planetary Walk
The shooting was done with a monopod extented to my eye level. The lens was mounted with a custom-made bracket, which allows me to mount the lens to turn around the no-parallax point of the lens.
As the lens is a fisheye lens, four pictures easily cover 360°. To be sure I took three exposures at each direction. The exposures were 2 f-stops apart. The best exposed set was chosen before stitching.