For a decade, Bryan Sansivero has sought out forgotten and dilapidated homes across the United States — chasing the mystery of not knowing what he might find within.

When a figure appeared in the window of a government building, the governor suggested she was an empress’s ghost. Months ...

From a half-million symmetrical lakes to a lost gold mine, our national parks and public lands are home to fascinating and ...

Researchers poured over historical photographs in search of "transients"—short-lived flashes of light of the night sky.