Mnajdra is a remarkable megalithic temple complex situated on the southern coast of Malta. Built around the fourth millennium BCE, it is recognized as one of the oldest religious sites on Earth. The complex is made up of three conjoined temples, each showcasing a unique architectural style that reflects the different prehistoric periods in which they were constructed. Mnajdra's design is particularly noted for its astronomical alignment, with certain temple features aligning with the sun during the equinoxes and solstices, marking it as an extraordinary example of ancient ingenuity.