While visiting Sredets District, you might make a stop by sights like Monument to the Liberating Tsar and Borisova Gradina Park.

Noted for its museums and historic sites, there's plenty to explore in Sofia City Center. Top attractions like Slaveykov Square and Ivan Vazov National Theatre are major draws, and you can hop on the metro at Serdika Station or Lavov Most Station to see more of the city.

Unique features of Lozenets include the spas and bars. Make a stop by Sofia Zoo or Borisova Gradina Park while you're exploring the area.

Though Serdika might not have many top sights, you can venture to the surrounding area to see attractions like Sofia Central Mineral Baths and Central Sofia Market Hall.

If you're spending some time in Ivan Vazov, Vitosha Blvd and Vitoshka Boulevard are top sights worth seeing.

While there might not be top attractions in G.K. Serdika, you can explore the larger area and discover places like Mall of Sofia and Vitosha Blvd.