Your uncle is missing on the island of Dimhaven, but that's only the beginning in this puzzle adventure from the team behind ...

In a state famous for its redwoods, beaches, and vineyards, Lake Shasta Caverns offers a glimpse into California’s hidden ...

Lake Natron is a soda lake in northern Tanzania with a volcanic geology that maintains the water's pH around 10.5, which is almost as caustic as ammonia. Some life-forms thrive there nevertheless.