The Red Pyramid at Dashur has the second largest base of any pyramid in Egypt (only slightly smaller then the Great Pyramid of Khufu at Giza); each side measures 220m (722 feet). It is the fourth highest pyramid ever built in Egypt, with almost 160 layers of stone. Stripped from its limestone casing, this pyramid reveals the reddish sandstone used to build most of its core. This explains its modern-day name, the Red Pyramid. Its Ancient Egyptian name was "The Shining One".

Ollantaytambo: At the northern end of the Sacred Valley, Ollantaytambo is rare if not unique in Peru. Ollantaytambo is a massive citadel located 50 kilometers from Machu Picchu. The citadel served as both a temple and a fortress. At some time unknown, and for reasons unknown, work mysteriously stopped on this huge project. The Sun Temple (above) that was constructed with huge red porphyry (pink granite) boulders.

Sacsayhuaman (Saqsaywaman): is located north of the city of Cusco, at an altitude of about 3555 meters above sea level, between the districts of Cusco and San Sebastian, both of them within in the province and department of Cusco.nal Park. Sacsayhuaman was supposedly completed around 1508. Depending on who you listen to, it took a crew of 20,000 to 30,000 men working for 60 years. Destruction of Sacsayhuaman lasted about 400 years; since 1536 when Manko Inka began the war against Spaniards and sheltered himself in this complex.

Kailasa Temple: the Hindu Kailasa Temple is the jewel in the crown. Carved to represent Mt. Kailasa, 
the home of the god Shiva in the Himalayas, it is the largest monolithic structure in the world, carved top-down from a single rock.  It contains the largest cantilevered rock ceiling in the world. It covers twice the area of the Parthenon in Athens and is 1.5 times high, and it entailed removing 200,000 tonnes of rock. It is believed to have taken 7,000 labourers 150 years to complete the project.

Tiahuanaco: also called Tiwanaku.was a major ceremonial centre and focal point of a culture that spread across much of the region. The ancient people built a pyramid of crude stones known as the Akapana. Tiahuanaco has four primary, surviving, structures, called the Akapana pyramid, the Kalasasaya platform, the Subterranean temple, and the Puma Punku. The ceremonial core of Tiahuanaco was surrounded by an immense artificial moat was to provide the Tiwanaku elite with a defensive structure and evoked the image of the city core as a sacred island.

Teotihuacan: Teotihuacan means 'The City of the Gods", or "Where Men Become Gods" (in Nahuatl). It is located in the valley of the same name 30 miles north of Mexico City.  It used to be a thriving city and ceremonial center that predated the Aztecs by several centuries. Most likely it was Mexico's biggest ancient city at its peak and the sixth largest city in the world in AD 600.  Teotihuacan began declining sharply around 650 AD, and was almost completely abandoned around 750 AD.

Stonehenge: Stonehenge is a megalithic monument on the Salisbury Plain in Southern England, composed mainly of thirty upright stones (sarsens, each over ten feet tall and weighing 26 tons), aligned in a circle, with thirty lintels (6 tons each) perched horizontally atop the sarsens in a continuous circle. There is also an inner circle composed of similar stones, also constructed in post-and-lintel fashion. Constructed between 5,000 and 3,000 years ago Stonehenge is angled such that on the equinoxes and the solstices, the sun rising over the horizon appears to be perfectly placed between gaps in the megaliths. .