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 all the way to the top. Follow Tech Insider ...

The U.S. Capitol dome is really an illusion ... The ribs support the thin, outer shell, but the smaller dome inside can support itself. You won't need as much steel with this double-dome design ...

Inside, members of ... not to mention an iconic cast-iron dome added to the structure in 1868. Though some travelers express mixed reviews on whether the U.S. Capitol warrants the time and effort ...

Remaining in the ashes were an interior wall of the ... area located beneath the central dome. In November 1846, Montgomery was chosen as the new capital city because of its proximity to most ...

For those who miss the old Dome on Atlantic Avenue ... Webster said there are also several symbols inside to remember Virginia Beach's past and future. This includes a parametric wall with ...

Tucked away inside Tallahassee's old capitol building ... which includes an immaculate stained-glass dome, and exterior are far more stunning than its replacement. Some complain, though, about ...