Most people exploring a city focus on what’s above ground. But in several cities across the U.S., there's an entirely ...

We’ve explored a lot of underground spaces, but nothing prepared us for the sheer size of these rooms. In this video, we take you inside some of the biggest underground chambers in America - from vast ...

The mystery of an 'underground city' beneath Egypt's pyramids has intensified after scientists revealed a new discovery below ...

Beneath Paris lies a world of secrets—catacombs, crypts, and tunnels. Step back in time with our Subterranean Tourist Series ...

In urban scenes, there are man-made ground objects with complex structures and significant height differences, which leads to challenges in generating large-scale true digital orthophoto maps (TDOMs) ...

Beneath cities and landscapes around the world, there are places most people were never meant to see. Old tunnels, shelters, ...

Forty feet underground, the city's once-bustling system of freight tunnels remains. Social media videos show adventurers and ...

Map shows incredible new £1.7bn tunnel as 2 new UK stations 'added to London Underground' Two new stations and a tunnel under the River Thames could transform South East London, and they're set ...

A 3D map of London’s underground structures is now on display at Fleet Green Skills Hub, highlighting that what is “beneath our feet could be a key component for a more sustainable future”, and how ...

Bombed by the US in a dramatic escalation, this mountainside enrichment plant south of Tehran is vital to Iran’s nuclear ambitions, and central to Israel’s efforts to dismantle them.

How Operation Midnight Hammer unfolded: Unable to view our graphics? Click here to see them. "At midnight Friday into Saturday morning a large B-2 strike package comprised of bombers launched from ...

Cathy Wren, artist and map designer, assembles part of a 3D map of City of London's Underground network at St Andrew's Church, Holborn in London, Friday, June 20, 2025. (AP ...