Repost from Reddit: https://www.reddit.com/r/dataisbeautiful/comments/8qt94a/endianess_of_date_and_address_formats_in_europe/
On the reddit comments some user wrote the address format for Russia is wrong on this map, they use big-endian as well.
Also Hungary is the only country in Europe where we use big endianness in names, aka Eastern name order: surname first, firstname second.
In Ireland you can always leave out everything but the postcode, each code is unique to an address. For example D02 R583 is the address of Government Buildings in Dublin. It’s for all addresses, not just larger buildings.
Pretty cool.