Writer Thao Thai reflects on returning to Ca' d'Zan, the former winter home of John Ringling that she often visited as a teen ...

The properties currently up for grabs vary in size, with up to three floors and between 750 to 1,300 square feet. Some of the buildings even date back to medieval times.

One particular Pennsylvania ghost town sits atop a fire that hasn't stopped burning for decades -- and you can still visit ...