If you're spending some time in Sredets District, Monument to the Liberating Tsar and Borisova Gradina Park are top sights worth seeing.

Noted for its museums and historical 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.

While there might not be top attractions in Slatina, you can explore the larger area and discover places like Arena Armeec and Festivalna Hall.

While there might not be top attractions in Serdika, you can explore the larger area and discover places 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.