From the hottest national park on Earth to a lake inside an Oregon volcano, the United States is home to places travelers cannot truly duplicate anywhere else. These 10 destinations stand out for geology, ecology, history, and scale that remain uniquely American.

Rising US-Iran tensions are renewing travel warnings, airspace closures and security concerns across parts of the Middle East and beyond. For American travelers planning big summer trips, these 12 bucket-list destinations face the clearest risk of delays, rerouting or sudden disruption.

Summer airfare has climbed 26.7% from a year ago, putting pressure on travelers who have not booked yet. Industry data and recent inflation reports show higher ticket prices are already hitting late planners across the US.

Surprise damage claims from rental car companies can leave drivers facing bills weeks after a trip ends. Consumer advocates say careful records, prompt written disputes, and card or insurance protections are often the key tools for pushing back.

A new survey found many Americans believe a handful of large states, led by Texas and California, could function as independent countries. The results highlight how people link size, economy and natural resources with self-sufficiency.

Surprise charges are becoming a common source of conflict on shared trips, especially when one traveler books expensive activities and expects others to split the bill. Travel advisers and etiquette experts say the fix is clear communication, fast action, and firm spending boundaries.