When you think of visiting Paris, you probably think of the Eiffel Tower, the Arc de Triomphe, or the Louvre. Those are all iconic attractions and you should definitely take the opportunity to see them in person if you travel to Paris. However, if you want to dig a little deeper into Paris history (20 meters underground to be exact), I highly recommend a visit to the Paris Catacombs. Did You Know the Bones of 6 Million People Are Under Paris? Walls Built with Femur and tibl