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The spectacular 15th-century Incan citadel situated on a mountain ridge 2,430 meters above the Sacred Valley.

The monumental burial complex of the Old Kingdom of Egypt, featuring the iconic Great Sphinx and Great Pyramid of Giza.

An immense mausoleum of white marble, built in Agra by order of the Mughal emperor Shah Jahan in memory of his favorite wife.

The complex historical heart of the Roman Empire, featuring monumental ruins from antiquity to the Renaissance, including properties of the Holy See.

An extraordinary architectural and urban masterpiece comprising 118 small islands integrated into a dynamic maritime lagoon.

The world's first national park, protecting vast geothermal environments, hot springs, and dense temperate wilderness.

A spectacular Gothic-style Benedictine abbey built upon a rocky tidal island on the coast of Normandy.

One of the most important archaeological sites in Southeast Asia, containing the magnificent remains of the Khmer Empire.

A pristine volcanic archipelago renowned for its unique endemic species and significance to evolutionary theory.

The ancient citadel located on a rocky outcrop above the city of Athens, containing the architectural remains of the Parthenon.

A sprawling medieval fortress, palace complex, and royal estate showcasing the height of Moorish art and architecture in Spain.

The world's most famous prehistoric megalithic stone circles, offering profound insight into Neolithic and Bronze Age ceremonies.

The landmark medieval fortress on the River Thames that served as a royal palace, prison, and secure jewel house.

The absolute pinnacle of ancient military architecture, stretching across thousands of kilometers of northern Chinese frontiers.

A complex network of historic wooden temples, Shinto shrines, and imperial gardens illustrating feudal Japanese culture.

The immaculately preserved Roman city buried intact by the catastrophic volcanic eruption of Mount Vesuvius in 79 CE.

The legendary Nabataean rock-cut desert capital seamlessly integrated into deep red sandstone canyons.

The holy Mayan civic center featuring the monumental step-pyramid temple of El Castillo.

An exceptional concentration of prehistoric Ancestral Puebloan cliff dwellings constructed inside high canyon alcoves.

The globally iconic geological landscape cut by the Colorado River, exposing billions of years of exposed strata.