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.

1. Edinburgh Northwest Kirk at Pennywell Kirk
A mid-1960's modernist church and suite of halls, of unusual design and incorporating what were then 'modern' decorative items, designed and made by Edinburgh artists and artisans. Guided tours available. Address: 42 Pennywell Gardens, EH4 4PE. Open: Sunday, September 27, 1-4pm | Angus Bremner

2. Edinburgh Open Workshop
Edinburgh Open Workshop is a not-for-profit, social enterprise which offers members access to a fully-equipped wood, metal, paint, and textiles workshop on a pay-as-you-go basis. There are also art studios and a creative learning and outreach programme of classes and workshops. Address: 39 - 41 Assembly Street, Leith, EH6 7BQ. Open: Saturday, September 26, 11am-4pm. Photo: Scottish Civic Trust

3. Edinburgh Photographic Society
Instituted in 1861, the Edinburgh Photographic Society (EPS) is one of the world’s oldest photographic societies. It is a community for photographers to share ideas, learn, and exhibit their work. Address: 68 Great King Street, EH3 6QU. Open: Saturday and Sunday, September 26 and 27, 10am-5pm. | Scottish Civic Trust

4. Edinburgh Printmakers
Edinburgh Printmakers is a creative centre for printmaking and the visual arts in Fountainbridge. In addition to its printmaking studio, exhibitions, shop, café, and print archive dating back to the 1960s, the building has a rich industrial history as the Castle Silk Mills, the North British Rubber Company, and Scottish and Newcastle Breweries. Guided tours on offer. Address: Castle Mills, 1 Dundee Street, EH3 3FP. Open: Saturday and Sunday, September 26 and 27, 10am - 6pm. Photo: Jim Stephenson