### Seek out museums
Museums can serve as a remarkable respite from the extreme heat due to their regulated indoor environments, designed to protect art and artifacts. Although entry fees are involved, they can be a small price to pay for a break from the heat. For instance, while in Paris, consider visiting the Musée Marmottan Monet or the Musée de Carnavalet, which feature cool basement spaces ideal for escaping the summer swelter. In Spain, the Center of Contemporary Culture and the Museum of the History of Barcelona belong to a network of climate shelters, offering comfortable zones during the hottest summer months.

Overall, with a little creativity and awareness of your surroundings, you can ensure a more enjoyable and cool summer vacation in Europe, even amidst the heat.