Yazd Old City
One of the best places I’ve ever visited to get lost in. Felt very safe even at night walking solo with a camera, and the minarets of the Friday Mosque stop you from getting too lost. Happily spent hours at all times of the day exploring the seemingly endless passageways.
Badgirs or wind catchers are ancient air conditioning, capturing cold winds from the nearby mountains and bringing them down into buildings. They’re functional but also quite beautiful, and are a distinctive part of the skyline.
I also particularly liked the many former wells scattered around the Old City, essential when living basically in the desert. It was amazing how quickly the temperature drops as soon as you descend a few metres underground, with it being at least 10C cooler at the bottom, though the temperature refreshment was offset by the stale air.
Bagh-e Dolat Abad
A typical Persian garden (generally underwhelming to my eyes) but home to the tallest wind catcher in the world (at 33m). This is also the only functioning one in Yazd, though built in 1960s after the original collapsed. There were also some stunning stained glass windows inside.
Amir Chakhmaq facade
Basically a fancy pavilion for women to observe the annual ceremony to commemorate the death of Hussein ibn Ali, but a very beautiful one. There were smaller but still impressive ones in the Old City, with the wooden structure used in the ceremony.