But such a move by President Trump wouldn't be the first time the USA has ventured in to the semi-autonomous territory that ...

The Octagon House in Fond du Lac was built in 1856 and is one of the few remaining examples of its kind in Wisconsin. Secret ...

Secret tunnels and rooms fueled rumors of a connection ... Need a break? Play the USA TODAY Daily Crossword Puzzle. City officials objected to the plan the next year, though the planners' defense ...

These NASA scientists stumbled upon a “city under the ice” in Greenland, decades after it was abandoned during the Cold War.

Secret tunnels and rooms fueled rumors of a connection to the Underground Railroad, though historians largely debunked this theory in 2017. The house gained a reputation for being haunted after ...

The entire solar system, ours at least, sits inside a pocket of low density called the Local Hot Bubble (LHB). This cavity in space is 1,000 light-years across, at least, and tips the thermometer at ...

A sprawling network of secret underground tunnels is being transformed into a major new London tourist attraction. Hidden 40m below the streets of the capital, the Kingsway Exchange Tunnels were ...