This natural marvel in Sumatra's highlands is rimmed with mountains ... you can visit the deepest lake in the U.S. at the stunning Crater Lake National Park. Read more: 25 Gorgeous Islands For ...

The volcanic crater lake attracts thousands of visitors each year. Those wanting to enjoy the deepest lake in the U.S. will need to schedule a visit soon, before access closes for more than two years.

The impact crater could be linked to the origins of life on Earth. The discovery of a massive crater formed by the impact of a meteorite more than three billion years ago is changing the way ...