Well...

But the first modern house that had integrated solar heating and radiation cooling is credited to Raymond W. Bliss. This house, finished on this date in 1955, used a large slanted slab of steel and glass to capture heat from the sun. This heat was ducted into the house. In the summer, the same ducts were used with fans to cool the house.
The house is in Tucson, Arizona, and it only cost $4,000 for materials and labor!
Nowadays...

But a word of warning: these houses cost a fair bit more than $4000 in materials and labor.
!
Learn some more...
I found this video to be very helpful in explaining passive heating and cooling.
DTE Energy has some kid-friendly info on solar energy and passive heating and cooling.
Also on this date: