CC BY-SA 3.0 (DE): M 93 (Wikimedia Commons)
In central Europe there is much standardization, the blinker has to be orange. And the yearly service checks everything (leakage, breaks, height of the light, feathers, battery, oil, …)
CC-BY-SA 4.0: JD (de.wikipedia.org)
However this photo is from Germany, so it has Europan car-sign. In the yearly service they make a test-drive and check if they feel safe driving, but not standardization.
CC BY 3.0: um.mos.ru
This picture is however from Russia.
Old brick, stone, concrete Houses, high heat capacity, newer houses have to have good heat isolation by law. No temperature-change during day. Narrow streets
CC0 Public Domain
Thin wooden walls, no heat capacity, big day-night-temperature-difference.
I recommend reading UShomes in Germany
CC-BY: Umberto Brayj
similar to holland-bike: heavy, long durable, steel; skirt guard, walk-though frame, front and back light and two breaks, often a quick lock mounted to the bike.
More infos about US-bikes vs Netherlands-bike
CC-BY: Glory Cycles
lightweight speedy bike often with just a single break, no lights at front or back