In the US, skyscrapers built in the 1950s and a bank tower built in 1972 have been listed as landmark buildings. In the UK, an office block built in the 1960s has been listed as a protected building.
美國把建於一九五○年代的摩天大樓，甚至一九七二年的銀行大樓都指定為「地標建築物」，英國也把六○年代的辦公大樓保留下來。