Europe

Europe encompasses a neighborhood of 10,180,000 km² which stretching from Asia to the Atlantic which starts from Africa to the Arctic. European countries usually welcome quite 480 million international visitors per annum which is quite half the worldwide market and seven of the ten most visited countries are European nations.

It's easy to ascertain why - a well preserved cultural heritage, open borders, and efficient infrastructure makes visiting Europe trip a breeze, and infrequently will you've got to travel quite a few hours before you'll immerse yourself during a new culture, and dive into a special phrasebook. Although it's the world's smallest continent in land area , there are profound differences between the cultures and ways of life in its countries.

The eastern border of Europe isn't well defined. The Caucasus states are sometimes considered a part of Asia thanks to geography and far from Russia and most of Turkey is geographically Asian. The UK with Ireland and Iceland all manage to sneak in.

 France, Italy, Germany, Spain, and therefore the UK are included in Must-visits. Never let your sense of adventure fail you by missing out on Scandinavia, Greece, Hungary, Poland, Portugal, or the microstates of Andorra, Liechtenstein, and Luxembourg. Take a tour of the Balkans for a more exotic European adventure.

Many European countries are members of the European Union (EU) which has its own currency (the Euro) and laws. There are no border controls between signatory countries of the Schengen Agreement (only at the outside borders). 

You have to note that not all EU members adopted the Schengen Agreement and not all countries that adopted Schengen or Euro are European Union members.