Last year, I was invited to the White House Christmas Party and I brought my mom with me. As we walked through the East Wing toward the White House, I remember thinking we were walking through history. What I didn't realize was that it would be the last time seeing it as it stood. Now, that same entrance is being demolished to make way for a new ballroom. It's more than just construction. It's the loss of a piece of American history. | Joel Bervell

2.5M views · 1.6K reactions | The American Museum of Natural History gave a tour of the museum's new wing, the under-construction Richard Gilder Center for Science, Education, and Innovation. The $431 million expansion will open to the public in February. AP Video by Ted Shaffrey | AP | Facebook