2 things.
#1, Mielabor, in your pic of the red salt box, the bicycle to the left has a full chain case! I am restoring a 1952 Raleigh that is missing that part. I am looking for one, but it's darned hard to find, and thus far, it's been 2 years with no luck! It's a good thing o have because it keeps the chain covered from road grime and weather, also it keeps your pants out of the chain.
#2, I wrote my graduate thesis on learning sustainable and energy efficient building design and use FROM historic buildings. My inspiration was the thought "What better incentive to make use of natural light and ventilation than when you are designing a building prior to the introduction of electric utility service?" As technology has allowed buildings to become super-tightly sealed, they have become far cheaper to heat and cool. Unfortunately, as Toggles so accurately pointed out, this can have unintended consequences.
With buildings so tightly sealed, there is significantly less air exchange and the air inside is often more polluted than the air outside. In order to combat this, filtration systems must be used and maintained, as well as air exchange components on the HVAC system. Unfortunately, many people do not utilize such systems and often don't maintain them properly when they do have them. Sick Building Syndrome is real and it affects people's health! In my mind, a good building, in this subject area, is a balance of several factors, including: safety, ease of maintenance, and operating costs. One cannot outweigh the others. We have the technology to super-seal buildings, but should we?
I don't believe all insulation, sealing, and new technology is bad, it just needs to be applied properly and it must work well without making life more difficult in other areas,
Dave