Thousands of people tour the US Capitol every year. Very few get a first-hand look inside the building's most iconic feature. There is a secret staircase hidden in the Capitol dome, and it goes ...

You can fool the governor with a trick that engineers used to build the United States Capitol dome. The U.S. Capitol dome is really an illusion. It's actually a thin shell. And the structure that ...

After viral photos of gleaming lights above ... over the 'Statue of Freedom' at the top of the Capitol dome. This comes weeks ...