Get up close with the animals at the Berlin Zoo, home to over 20,000 creatures from all corners of the world. Little ones will love the petting zoo and pony rides, while parents can admire the ornate 19th-century architecture.
A trip to Paris wouldn't be complete without a visit to the iconic Eiffel Tower. Take the family up to the summit for stunning views of the city, then enjoy a picnic in the Champ de Mars gardens below.
Step inside the world's smallest country and marvel at the staggering art and architecture of the Vatican City. Take in the sprawling St. Peter's Basilica, the stunning Sistine Chapel, and the incredible Vatican Museums.
Explore the winding canals of Amsterdam by boat, taking in the city's beautiful architecture and landmarks along the way. Kids will love spotting the houseboats and bridges in this picturesque city.
Step back in time to medieval England at the Tower of London, home to the crown jewels and infamous Beefeater guards. Kids can even try on armor and handle replica swords in this historic fortress.
If you have more time, consider visiting nearby attractions like Potsdam in Berlin or Versailles in Paris. For a shorter trip, skip the Vatican City and spend extra time exploring the ancient ruins of Rome. Don't forget to book tickets for popular attractions in advance to avoid long lines.