Aristotle Onassis and Maria Callas 'couldn't live without the other one,' his longtime personal secretary Kiki Feroudi ...

Aristotle Onassis' longtime personal secretary Kiki Feroudi Moutsatsos tells PEOPLE about his affair with Maria Callas ...

New details the most mysterious love triangles of the 20th century, that of Aristotle Onassis Maria Callas and Jackie Kennedy ...

Inspired by his love for fantasy, Jon Collins-Black created “There’s Treasure Inside,” a book with hints leading to hidden ...

Angelina Jolie plays opera singer Maria Callas in the new Netflix movie 'Maria' from director Pablo Larraín. Here's the true ...

Jon Collins-Black has hidden five "treasure chests" across the country for adventurers to find, and also written a book which ...

The reservoir, named for the former First Lady, was decommissioned in 1993 in part because of algae contamination concerns, as well as the upstate New York aqueduct expansion, according to the Central ...

Ever dreamt of channelling your inner Jacques Cousteau and hunting for treasure? Well, Jon Collins-Black is making that dream ...

The exposed reservoir divider comes as New York City officials issue the first drought warning in more than 20 years.

whom she fondly calls “Aristo,” and the opera diva Maria Callas — while he was married to Jacqueline Kennedy Onassis, then the most famous woman in the world. Complicated would be an ...