So here are 17 famous places with unexpectedly hidden rooms ... available to tour via Seattle Underground. Buyenlarge / Getty Images 6.The New York Public Library has four million books stored ...

We know what famous landmarks look like today ... has been a work in progress since 1882. Here are photos that show the construction of monuments in cities around the world — and the end ...

So here are 17 famous places with unexpectedly hidden rooms and passages. 1.For starters, there's an unfinished, hidden records room in Mount Rushmore behind Abraham Lincoln's head. The architect ...