In 1957, the first fragments of statues were discovered at Sperlonga, Emperor Tiberius's pleasure palace from the first ...

This fully furnished listing includes a secret wine tasting room and a 116-foot water slide that plunges into an underground pool grotto and enough solar power to live off the grid for a month. And it ...

The view from inside the custom-designed grotto. With a pool table, a zipline, fire pits, a treehouse, a swimming pool and a grotto, the inner child of this home's next owner will be ecstatic. In fact ...

In just 95 days, mud, clay, and stone were transformed by hand into a hidden underground house complete with a shimmering ...

Social distance in a $17.5 million UWS brownstone with its own pool. Eitan Gamliely for Sotheby's International Realty Where better to stay home than a brownstone with its own 33-foot-long pool, a ...