For aviation enthusiasts and history buffs, the Palm Springs Air Museum is a real find. Home to one of the largest collections of World War II aircraft in the country, this museum is more than just planes—it’s a walk through history. Here, you can get close to vintage warbirds, from bombers to fighter jets, and even step inside a few. There's also a theater showing documentaries that bring the stories of these planes and their pilots to life, along with a flight simulator for those who want a feel of the cockpit.

The International Wooden Shoe Museum in Eelde showcases an unrivalled collection of over 3,000 pairs of clogs and wooden-soled footwear from more than 45 countries, making it the world's most comprehensive exhibit of its kind. The museum, born from the passion of the last clog makers in Eelde and enhanced by significant private collections, also displays a vast array of clog-making tools and machinery. The museum does not open throughout the entire year, so it’s essential to check their website regularly for their schedules.

El Retiro, an iconic park in Madrid, was once reserved exclusively for Spanish royalty, but it became accessible to the public in the late 19th century. Covering 350 acres, it is one of the largest parks in the city and is often referred to as 'the lungs of Madrid' due to its vast green spaces. It's a popular spot for leisure, sports, and outdoor activities, with wide avenues and flat terrain perfect for running, cycling, and skating. You can also rent rowboats to paddle around the pond or enjoy a horse-drawn carriage ride. The park is home to several architectural and historical features, including the Velázquez Palace and the Crystal Palace, as well as remarkable sculptures and fountains, such as the statue of the Fallen Angel, the only sculpture in the world to represent the devil, Lucifer. The park also boasts a Puppet Theatre, which offers a unique program every weekend and is one of a kind in Europe.