Vilnius is one of the cities in Central Europe, lying the farthest east, which experienced a strong interaction between the Eastern and Western cultures. In 1994 the historical centre of Vilnius was globally acknowledged due to its exceptionality and was included in the World Heritage List of UNESCO. Vilnius Old Town is the largest in Eastern Europe. From the 14th to the 18th centuries the city made a huge impact on the architectural development throughout the whole region. The city boasts a well-preserved example of a street network and urban structure, characteristic to the Middle Ages. The historic centre of Vilnius stands for a proof of harmony between a human being and nature.