The 48 Best Things to Do in Paris

"There are a few major reasons to visit the Panthéon, starting with the gorgeous neoclassical architecture; designed by Jacques-Germain Soufflot in 1757, it began as a replacement to the original Church of Sainte-Geneviève. People also come to visit the final resting places of some of France's most famous sons and daughters, from Victor Hugo to Marie Curie. And then there are those who come to marvel at Foucault's Pendulum, tracing the path of the Earth. The vibe in the crowd is a mix of awe, reverence, and curiosity. Timed tickets can be purchased online." - Melissa Liebling-Goldberg, Julia Eskins