Start your day at the iconic Eiffel Tower, take a boat ride along the Seine River in the afternoon, and end your evening with a visit to the Louvre museum.
Go on a tour of the famous Sagrada Familia in the morning, explore the Gothic Quarter in the afternoon, and watch the sunset from atop Montjuic Castle.
Visit the Colosseum and Roman Forum in the morning, enjoy some delicious Italian cuisine for lunch, and end the day with a visit to the Vatican City.
Explore the Acropolis and Parthenon in the morning, have lunch in the vibrant Monastiraki Square, and spend the evening at the Temple of Olympian Zeus.
Take a bicycle tour of the city in the morning, visit the Van Gogh Museum in the afternoon, and enjoy the nightlife in the Red Light District.
Visit the Tower of London in the morning, take a ride on the London Eye in the afternoon, and end your day with a visit to the British Museum.
Visit the historic Brandenburg Gate and Reichstag Building in the morning, explore the Berlin Wall in the afternoon, and end your evening with a visit to the famous Checkpoint Charlie.
If you have extra time, consider taking a day trip to Versailles from Paris, or visiting Pompeii from Rome. Don't forget to try the local cuisine and immerse yourself in the culture wherever you go. Check out https://trip.tp.st/5u0O2Vxp for any hotels and flights.