Birds of Carlsbad Caverns National Park

11 things you need to know about flying discount airlines Spirit, Frontier and Allegiant

Spirit, Frontier and Allegiant charge for carry-on bags, don’t offer free advance seat assignments and make you buy your own soft drinks.

American road trip: The 50 longest highways in the US

While driving across the U.S., it might seem like some highways are never-ending, but which one’s actually the longest? Hint: One end begins in Boston.

50 state road trip: Landmarks that represent each state

These destinations each represent an historic, popular, or scenic destination in each state.