- Jan 2011
Other than Egypt and South America, I'm not aware of any pyramids. The South American ones are probably ziggurats.
Chinese pyramids - Wikipedia
10 ancient pyramids around the world - HeritageDaily - Archaeology News
Monte d’Accoddi is an ancient megalithic structure in northern Sardinia, Italy and dates from around c. 4,000-3,650 BCE. The structure was initially built by the Ozieri culture, a prehistoric pre-Nuragic civilisation that constructed more than 200 related archaeological sites.
The Pyramids of Argolis, also referred to as the Greek Pyramids are pyramid-shaped monuments that are located in the Argolid plains in Greece.
Archaeologists have accounted for more than 255 pyramids, built across four royal pyramid field sites in Nubia (El-Kurru, Nuri, Meroe & Jebel Barkal or Gebel Barkal).
Many pre-Columbian Native American societies of ancient North America built large pyramidal earth structures known as platform mounds. Among the largest and best-known of these structures is Monks Mound at the site of Cahokia in what became Illinois, completed around 1100 CE, which has a base larger than that of the Great Pyramid at Giza.
Koh Ker is a remote temple site and former capital of the Khmer empire in northern Cambodia. The most distinct monument is the Prang, a seven‑tiered and 36-metre (118 ft) high pyramid,