1. Most tourists visit Sofia from May to October, as at this time there is always warm weather favorable for excursions. Winters in Sofia are warm and soft, so fans of festivals would be interested in visiting the city on the New Year’s Eve.
2. The city has an excellent transport system, so you can travel through its territory by underground, buses, trolley buses and trams. Many major attractions are within walking distance of each other, so it is comfortable to explore interesting areas of the city on foot.
3. Luxury hotels and shopping pavilions are located on Vitosha Boulevard. Away from the busy boulevard attractive hotel at medium and low prices can be found, as well as small restaurants and cafes that are sure to appeal to budget travelers.
4. Stores open no later than 10:00 am and serve visitors to 7:00-8:00 pm. Saturday is a half-day, commercial pavilions work till 2:00-3:00pm; the common day-off is Sunday.
6. The city has well developed system of cashless payment; credit cards of international standard are taken in all major restaurants, hotels and shopping complexes. Cash will be useful to those who plan to shop at open markets and dine in small cafes away from the city center.
7. Tourists who expect to use a taxi are sure to bargain with a driver in advance. Taxis can be called by phone or taken from the parking lot.
The historic district of the city strikes with an abundance of spectacular sights. Buildings of different eras have preserved in Sofia. There are also lots of museums in the city. Obligatory … 
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9. Locals treat foreign visitors quite friendly and welcoming, but not all of them speak foreign languages. To show respect to locals you should definitely learn a few phrases in the local language.
