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When it comes to 4X and grand strategy games, you've got plenty of choice. But perhaps the biggest - certainly the most conceptually expansive - of them all is Stellaris, the long-running Paradox ...

A newly documented stone wall lying beneath the Atlantic off western France is forcing archaeologists to rethink when Europeans first mastered large-scale building in stone. The structure, dated to ...

The imposing Buzludzha Monument in central Bulgaria once invoked infallible power, a power that once rested with the nation’s Communist Party. The brutalist megastructure, opened to the public in 1981 ...

The excavation of a Stone Age community center in Ukraine is helping explain why large groups of tens of thousands of people flourished and then fell more than 5,000 years ago. The "megastructure" ...

Istanbul (CNN) — Whether you’re a believer or not, visiting Hagia Sophia is a spiritual experience. The architectural genius of this place of worship — which was built as a church in 537CE before its ...