The most travel-dense region on earth, where the trains work, the borders barely exist, and the main constraint is money rather than logistics.
What it is
Roughly the western half of the continent — France, Germany, the Low Countries, Switzerland, Austria, Italy, Spain, Portugal, the Nordics, Ireland and the UK — though the boundary is a matter of habit rather than geography.
For a traveller the defining facts are density and connection. There is more to see per hour of travel here than anywhere else on earth, the rail network makes most of it reachable without flying, and the borders inside Schengen do not exist in any practical sense. The constraint is not logistics. It is money.
The Schengen rule, which catches people out
Most non-EU visitors get 90 days in any rolling 180-day period across the whole Schengen Area — which is a single unit, not per country. Leaving France for Spain does not reset anything.
It is a rolling window, so the calculation is: on any given day, how many of the previous 180 days were you inside the area? There are online calculators and it is worth using one before booking, because overstaying now produces an entry ban rather than a shrug.
Not in Schengen: Ireland, and the UK, which also now requires an ETA for most visitors. In Schengen but not the EU: Norway, Switzerland, Iceland. Recently joined: Romania and Bulgaria.
The EU’s EES biometric system and the ETIAS authorisation have both been phasing in — check what is required for your nationality close to travel, because the dates have moved repeatedly.
Rail, which is the reason to come
Western European rail is the best in the world outside Japan, and building a trip around it is more pleasant than flying and often not slower once airports are counted.
High-speed lines — the TGV, the ICE, Italy’s Frecciarossa and Italo, Spain’s AVE, Eurostar — connect the major cities at 300km/h. Paris to Lyon is two hours; Madrid to Barcelona is two and a half.
Booking early matters enormously on high-speed services. The same Paris–Marseille seat can be €29 or €150 depending on when you buy it. Regional trains are usually fixed-price and do not need booking.
Interrail and Eurail passes are worth it for a lot of travel in a short time, or for flexibility. They are not automatically cheaper — high-speed trains require paid seat reservations on top of the pass, and in France, Spain and Italy those add up. Do the arithmetic against advance point-to-point fares before buying.
Night trains have come back: Vienna–Paris, Berlin–Stockholm, Brussels–Prague and others. They save a hotel night and are a genuinely good way to cover distance.
Costs
This is the expensive part of the world. Switzerland, Norway, Iceland and Denmark are eye-watering; Portugal, Spain, southern Italy, Greece and much of central Europe are a fraction of the cost for arguably better food.
Ways it becomes affordable: cook sometimes, because supermarkets are excellent and cheap even where restaurants are not; travel outside July and August; use the rail booking window; and stay a night outside the historic centre in cities where that halves the room rate.
Seasons
May–June and September–October are the best months everywhere: warm, open, and not yet or no longer full.
July and August are peak. Southern Europe is very hot, the coasts are full, and much of Italy, Spain and France closes for their own holidays in August.
Winter is cheap, dark in the north, and genuinely lovely in the south — Seville and Rome in February have no queues. Christmas markets in Germany, Austria and Alsace run late November to Christmas Eve. The Alps run a full second high season for skiing.
Planning a route that is not just capitals
The commonest mistake is a capitals tour: London, Paris, Amsterdam, Berlin, Prague, Rome, in twelve days. It produces a fortnight of railway stations and one photograph per city.
Better: pick two countries and go slowly. Or pick a line and follow it — the Rhine, the Camino, the Alps, the Atlantic coast from Porto to Biarritz. Regional Europe is where the food, the prices and the actual difference between one place and the next live.
More Regions
Southeast Asia
The region that taught a generation how to travel cheaply and is still the easiest place on earth to do it. Warm, connected, and far more varied than the circuit suggests.
The Andes
The longest mountain range on earth, running the length of a continent, with the altitude that shapes every decision you make about travelling in it.
East Africa
The Serengeti and the Mara, Kilimanjaro, the Rift Valley lakes and the Swahili coast — and the safari industry that sits on top of all of it.