Petrified Forest is best known for its ancient trees that have crystallized over 225 million years into rainbow colors. The park also features fossils from huge 18-foot crocodile-like creatures known ...

Most modern structures are built to last 50 years or so, but ingenious ancient engineering has kept this watery city afloat ...

With no trees, undergrowth, or official state designation, this underrated spot in Wyoming is famous for 50 million other ...

A sun-swept corner of the Painted Desert draws more than 600,000 visitors each year. While most come to see one of the world's largest concentrations of brilliantly colored petrified wood, many ...

When we picture forests, images of the towering Redwoods of California or the lush tropical rainforests of Costa Rica, like those in Monteverde's first ever tree-climbing park, may come to mind.