Ancient tombs, long-buried ruins and even whole cities, there's a wealth of historic secrets lying just beneath our feet. Whether built to save space, to conceal a secret or even just buried by time, history has left behind a rich legacy of underground historic sites.
For the history enthusiast, descending into the subterranean corridors, chambers and passageways of underground sites is a truly unmissable experience; one which offers a whole world to discover and which fuses fascinating stories with a touch of drama. Here, historic travel website Historvius has put together a selection of great underground historic sites that are open to visit today.
Text, captions and photos courtesy of Historvius.