Doors Open Day takes place in different places on different weekends during the month. Edinburgh’s turn is on Saturday and Sunday 27 and 28 September.
More than 100 sites in the Capital will throw open their doors on one or both days that weekend and may offer guided tours, special activities or talks by experts.
Doors Open Day is billed as Scotland’s largest free festival that celebrates architecture, culture, and heritage.
Midlothian has its Doors Open Day this weekend, 13 and 14 September. And West Lothian is next weekend, 20 and 21 September.
We’ve already featured 29 Edinburgh buildings you can visit on 27 and/or 28 September. And here are another 25. Look out for more to come.