Tucked away in the Canar Province of Ecuador is an archaeological wonder, the largest known Inca ruins in Ecuador. Named Ingapirca ("Inca Wall"), the city was built in the 15th century when the Inca people merged their community with the native Canari who already inhabited the area.

According to Moon Travel Guides, there's little left of the area except for the foundations of old buildings, since the invading Spanish razed the town. That said, the area is still rich in the combined history of the Canari and the Incas and features the Temple of the Sun, a large stone thought to have been used as a lunar calendar, and a fragment of an Inca road. The ruins continue to be studied, says Atlas Obscura, in the hopes that scientists can learn more about the Inca culture.

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There are several ways to make the journey out to visit Ingapirca, including following part of the old Inca road system. According to Rough Guides, the three-day hike follows the Inca Royal Road, whichlinked Cuzco with other Inca cities. It's also possible to make the drive from Cuenca, says Lonely Planet, and be accompanied by a guide who can relate the history of the ruins and paint a vivid picture of what life might have been like for the Inca who lived there.

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Rain clouds pass over a section of the Great Wall at Jinshanling, Hebei Province on June 10, 2012. A recent archaeological survey found its total length to be 21,196 km or 13,171 miles. (Ed Jones/AFP/Getty Images)