North Central Province is one of the nine provinces of Sri Lanka, the first level administrative division of the country. The provinces have existed since the 19th century but did not have any legal status until 1987 when the 13th Amendment to the Constitution of Sri Lanka established provincial councils.The province is the largest by size, and second least populated in the country. The province consists of the districts of Anuradhapura and Polonnaruwa, both of which were important ancient Sri Lankan kingdoms. The climate is semi-arid, and the forests are dry evergreen forests.

List of Attractions in North Central Province
Mihintale
Kaudulla National Park
Dambulla Cave Temple
Gal Vihara
Minneriya National Park
Lankathilaka Image House
Habarana Buddhist Temple

Anuradhapura

Anuradhapura, city, north-central Sri Lanka. It is situated along the Aruvi Aru River. The old section of Anuradhapura, now preserved as an archaeological park and designated a UNESCO World Heritage site in 1982, is the best known of Sri Lanka’s ancient ruined cities. In the immediate vicinity are huge bell-shaped dagobas (Buddhist commemorative shrines, or stupas) built of small sun-dried bricks as well as temples, sculptures, palaces, and ancient drinking-water reservoirs. The city also contains an ancient pipal tree that is believed to have originally been a branch of the Bo tree at Bodh Gaya (Bihar, India), under which Gautama Buddha attained Enlightenment. The Bo tree branch was planted at Anuradhapura about 245 BCE, and it may be the oldest tree in existence for which there is any historical record.

Polonnaruwa

Polonnaruwa District is one of the 25 districts of Sri Lanka, the second level administrative division of the country. It is also one of the two districts of North Central Province and has an area of 3,293 km2. The district is administered by a District Secretariat headed by a District Secretary (previously known as a Government Agent) appointed by the central government of Sri Lanka. The capital of the district is the city of Polonnaruwa.

List of attractions in Polonnaruwa
Gal Vihara
Polonnaruwa Ruins
Quadrangle
Lankatilaka
Rankot Vihara
Tivanka Image House
Archaeological Museum

And many more attractions on the above link

List of towns

Welikanda
Dimbulagala
Medirigiriya
Giritale
Hingurakgoda
Minneriya
Bakamuna