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What is the most visited tourist attraction in Sliven?
What is the largest religious site in Sliven?
What is the most famous natural park in Sliven?
Are tourist attractions in Sliven free to visit?
Which attractions in Sliven accept group tours?
What are the best attractions in Sliven for family visits?
When is the best time to visit tourist attractions in Sliven?
Which attractions in Sliven are accessible for visitors with disabilities?
What are the opening hours for the Sliven Fortress?
Are there guided tours available for the House of the Sliven Revolutionaries?
Is photography allowed at the St. Dimitar Church?
Do any attractions in Sliven provide multilingual information?
What is the entry fee for visiting the Sinite Kamani Natural Park?
Can I book tickets for attractions in Sliven online?
What safety guidelines should I follow while visiting Sliven's outdoor attractions?