A state park in eastern Kentucky is throwing a summer party pool, but instead of being under the sun, it'll be deep inside a cave. This year, Carter Caves State Resort Park is opening up Cave Branch ...

This project meant spending weeks carving a swimming pool and living space directly into a cave. Progress was slow, and every mistake became harder to fix underground. Water revealed weaknesses that ...

Ethan Richards turned his in-ground pool in North Carolina into a sunken man cave for just $3,000. The 18-by-20-foot structure includes a working television, a refrigerator, and a full-service bar.

For some travelers, the best way to enjoy a vacation is to spend as much time in nature as possible. Fortunately, if you live ...