Explore this gorgeous city by hiking the countryside. If you are lucky enough, you can see the Northern Lights in winter.
It is a small Belgian city, the best time to visit during the 10-day Ghent Festival.
Venice is the perfect place with world famous canals and stunning plaza.
9. San Francisco
Having a picnic overlooking the Golden Gate Bridge is the best activities in San Francisco.
There are thousands of years of history to make it become the perfect place to travel alone.