Ħal Saflieni Hypogeum is a unique underground burial complex on the island of Malta that covers 500 square meters (5,381 square feet). It became a UNESCO World Heritage Site in 1980, owing to its ...

On the shores of the Baltic Sea, in the south of Denmark, a massive engineering marvel is taking shape — piece by giant ...

Alabaster Caverns State Park in Oklahoma has an impressive 'world's largest' structure and it is something you need to ...

With over 8,000 cubic meters of water, it contains more 3.5 Olympic swimming pools of water volume, all geothermally heated.

Ahead of his largest-ever exhibition in the U.S., the dissident artist reflects on collecting jade and living below ground.

Delhi Metro is all set to become the world's longest metro network with the completion of the Golden line, surpassing New ...

In the weeks since President Donald Trump has taken office, he has pushed to unleash oil and gas production and has signed ...

However, the scaled-back high-speed railway line to London is just one part of the 'big, ugly Manchester question', as Rob ...

Delhi Metro will become the world's longest metro network in a single city, surpassing New York. The current 394 km network ...

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From touring the Skocjan Caves to admiring the works of Joze Plecnik in the capital, Robin McKelvie explores five wondrous ...

The Minister of Housing and Urban Affairs stated that metro networks are either operational or under development across 29 ...