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.
Persepolis is an archaeological site and the ceremonial capital city of the Achaemenid Empire, also called the First Persian Empire that covered an area of 2.1 million square miles from the Balkans and Eastern Europe proper in the west, to the Indus Valley in the east.
Koi Krylgan Kala, also called Qoy Qırılg'an qala locally is an archaeological site in the Ellikqal'a District of the Republic of Karakalpakstan, within Uzbekistan.
Vilcabamba, also called Willkapampa and Espíritu Pampa is an archaeological site and former capital of the Neo-Inca State, located in the Cuzco Region of Peru.
Calleva Atrebatum, also known as Silchester Roman City was a large Roman settlement located near the modern-day village of Silchester in Hampshire, England.
Old Sarum is a large multi-period archaeological site located on a westward-facing chalk spur overlooking the River Avon, north of the modern-day city of Salisbury, England.
Kuélap is a large pre-Columbian walled city, fortress (debated) or temple complex built by the Chachapoyas, also called the "Warriors of the Clouds", a culture of the Andes living in the cloud forests of the southern part of the Department of Amazonas of present-day Peru.
Located off the English coast in the Thames and Mersey estuaries, the Maunsell Forts are Second World War defensive platforms that were built to defend the UK against enemy aircraft.
Nonsuch Palace was one of Henry VIII’s largest building projects during his reign, built as a celebration of Henry’s power and grandeur, it was meant to rival that of the French King Francis I’s Château de Chambord.
Silbury Hill is an ancient prehistoric man-made conical mound rising above the dramatic landscape of the nearby Avebury Stone Circle in Wiltshire, England.
Choquequirao, meaning "Cradle of Gold" in Quechua is an archaeological site in the Vilcabamba mountain range, overlooking the Apurimac River in Southern Peru.