Modeled after Rome’s Pantheon, the Panthéon (situated in the Latin Quarter of Paris) is an iconic monument and the national mausoleum of many French writers, philosophers, and other famous people, including Marie Curie, Victor Hugo, and Voltaire. Even if you aren’t a history or architecture lover, you will be impressed by the majestic building. From April to October, you can even enjoy magnificent views of the city’s landmarks from the colonnaded balcony.