More than 2,500 National Historic Landmarks are scattered across the United States, from Massachusetts over to Hawaii and in every state in between. Each landmark, whether it’s an historic building, ...

When you think of some of the greatest sites in the United States, you may envision postcard ... What many people don’t know is what those landmarks really look like up close.

Here are the major US cities and landmarks that could be underwater ... Read more: Before-and-after images show how parts of San Francisco could be underwater by 2100 The city's Ferry Building ...

Delaware is full of interesting places to visit, and two of them were named 'must-see' destinations for international ...