The so-called Greek Pyramids, also called the Pyramids of Argolis, are several frusta or truncated pyramidal shaped structures and “blockhouses”, located on the eastern part of the Peloponnese peninsula in present-day Greece.
On the small island of Isla del Caño and the Diquís Delta in Costa Rica are over 300 stone Petrospheres often referred to as the Diquís Spheres, that have been attributed to the now extinct Diquís culture.
Siq al-Barid, also called ‘Little Petra’ is a Nabataean site in the Ma'an Governorate of Jordan that features rock cut tombs, stone-built architecture, and a complex system of hydrological engineering.
The Hierapolis Ploutonion is a sacred sanctuary in the ancient Greco-Roman-Byzantine city of Hierapolis, located in classical Phrygia in the present-day province of Denizli, Turkey.
Ani is a ruined medieval city, and the former capital of the Bagratid Armenian kingdom, located in the Eastern Anatolia region of the Kars province in present-day Turkey.
Pavlopetri, also called Paulopetri, is a submerged ancient town, located between the islet of Pavlopetri and the Pounta coast of Laconia, on the Peloponnese peninsula in southern Greece.
Rujm el-Hiri (meaning “"stone heap of the wild cat"), also called Gilgal Refā'īm (meaning "wheel of spirits”), is an ancient megalithic monument, located in the Israeli-occupied region of the Golan Heights.
Tongwancheng was the capital of the Xia Kingdom, founded by the Xiongnu people at the southern edge of the Maowusu Sands of the Ordos Desert, in present-day Inner Mongolia
Augusta Bilbilis is an ancient Roman town, founded on the heights of Cerro de Bambola in the historical province of Hispania Tarraconensis, in present-day Spain.
Termessos was a fortified city, founded by Pamphylian tribes called the Solymi (also called the Solims) near the peak of the Solymos (Güllük Dağı) mountain, in the Taurus mountain range in present-day Turkey.
Across the North Caucasus of Eastern Europe, are structures built in the characteristics of Vainakh tower architecture for defensive or domestic use, that were constructed by the Nakh peoples in Chechnya, the Republic of Ingushetia, and north-eastern Georgia.
The Giants’ Graves or Giants’ tombs, refers to the collective of tombs scattered throughout modern-day Sardinia, that feature a type of megalithic gallery grave built by the Nuragic civilisation.
Isca Augusta, also called Isca Silurum, and Carleon Roman Fortress is an archaeological site and the remains of a large legionary fortress located in present-day Carleon, Wales.
The Antonine Wall (Vallum Antonini) was a defensive wall built by the Romans in present-day Scotland, that ran for 39 miles between the Firth of Forth, and the Firth of Clyde (west of Edinburgh along the central belt).
Hadrian’s Wall (Vallum Aulium) was a defensive fortification in Roman Britain, running for 73 miles (116km) from Mais at the Solway Firth on the Irish Sea, to the banks of the River Tyne at Segedunum at Wallsend in the North Sea.