15 days in Europe Itinerary

Vibrant and noisy, London is one of the world’s leading cities, an international capital of culture, education, fashion, music, finance, trade, and politics.

London is known for museums, sightseeing, and nightlife. Your trip includes some of its best attractions: enjoy breathtaking views from Coca-Cola London Eye, don't miss a visit to Big Ben, ponder the world of politics at Houses of Parliament, and admire the striking features of Tower of London.

To find where to stay, ratings, and other tourist information, read London trip itinerary planner.

Washington DC, USA to London is an approximately 11-hour flight. The time zone changes from Eastern Standard Time (EST) to Greenwich Mean Time (GMT), which is usually a 5 hour difference. Traveling from Washington DC in May, expect London to be slightly colder, temps between 62°F and 46°F. Wrap up your sightseeing on the 23rd (Tue) early enough to take a train to Paris.

A beautiful and romantic city fit for any itinerary, Paris brims with historic associations and remains vastly influential in the realms of culture, art, fashion, food and design.

Change things up with a short trip to Palace of Versailles in Versailles (about 48 minutes away). And it doesn't end there: explore the world behind art at Louvre Museum, pause for some serene contemplation at Basilique du Sacre-Coeur de Montmartre, admire the striking features of Arc de Triomphe, and don't miss a visit to Eiffel Tower.

To see ratings, traveler tips, and tourist information, use the Paris tour planning site.

Getting from London to Paris by train takes about 3.5 hours. Other options: fly; or do a combination of car and train. Due to the time zone difference, you'll lose 1 hour traveling from London to Paris. In May, plan for daily highs up to 64°F, and evening lows to 49°F. Wrap up your sightseeing on the 26th (Fri) early enough to fly to Nice.

Well-known for the beautiful views of its famous Promenade des Anglais waterfront, Nice is an ethnically-diverse coastal port city on the French Riviera and the fifth most populated city in France.

On the 27th (Sat), contemplate the long history of Villa & Jardins Ephrussi de Rothschild, then take in nature's colorful creations at Le Jardin Exotique d'Eze, then get great views at Colline du Chateau overlook, and finally make a trip to Place Massena.

For more things to do, other places to visit, and tourist information, you can read our Nice online vacation planner.

You can fly from Paris to Nice in 3 hours. Alternatively, you can take a train; or drive. Traveling from Paris in May, Nice is a bit warmer at night with lows of 57°F. Cap off your sightseeing on the 27th (Sat) early enough to go by car to La Condamine.

La Condamine is the central Ward in the Principality of Monaco. On the 28th (Sun), take a leisurely stroll along Monte Carlo Harbor, step into the grandiose world of Prince's Palace, Head underground at Jardin Exotique de Monaco, then get a taste of the local shopping with Les 5 Saveurs, and finally pause for some serene contemplation at Cathedrale Notre-Dame-Immaculee.

For traveler tips, where to stay, ratings, and other tourist information, you can read our La Condamine trip planning site.

Traveling by car from Nice to La Condamine takes an hour. Alternatively, you can take a train; or take a bus. In May, daily temperatures in La Condamine can reach 68°F, while at night they dip to 57°F. Cap off your sightseeing on the 28th (Sun) early enough to travel to Barcelona.

Barcelona, the country’s second-largest city, is a cosmopolitan urban center known for its throbbing youthful energy and stellar architecture.

On the 29th (Mon), admire the landmark architecture of Casa Mila - La Pedrera, then admire the landmark architecture of Casa Batllo, then make a trip to Basilica de la Sagrada Familia, and finally stroll around Parc Guell. Here are some ideas for day two: take a stroll through Las Ramblas, take a stroll through Gothic Quarter (Barri Gotic), then pause for some serene contemplation at Barcelona Cathedral, and finally pick up some local products at La Boqueria.

Discover how to plan a Barcelona trip in just a few steps with Klarna Trips's itinerary builder.

Do a combination of bus and flight from La Condamine to Barcelona in 5 hours. Alternatively, you can fly; or drive. Expect a daytime high around 71°F in May, and nighttime lows around 57°F. Wrap up your sightseeing on the 30th (Tue) to allow time to fly to Madrid.

Madrid is known for its cultural and artistic heritage, lively nightlife, and a dynamic culinary scene.

Explore Madrid's surroundings by going to Toledo (Catedral Primada & Church of Santo Tomé). And it doesn't end there: explore the world behind art at Prado National Museum, don't miss a visit to Puerta del Sol, admire the striking features of Royal Palace of Madrid, and stroll through Casa de Campo.

To see more things to do, other places to visit, reviews, and tourist information, refer to the Madrid trip itinerary planner.

Traveling by flight from Barcelona to Madrid takes 3 hours. Alternatively, you can take a train; or drive. Traveling from Barcelona in May, expect a bit cooler with lows of 52°F in Madrid. Cap off your sightseeing on the 3rd (Sat) early enough to catch the flight back home.