The Jetavanaramaya is a stupa, located in the ruins of Jetavana monastery in Anuradhapura, Sri Lanka. It height reaches to 122 metres and it was the world’s tallest stupa and the third tallest structure in the world when it was built by King Mahasena of Anuradhapura (273–301) and also the second tallest non-pyramidal buildings after Pharos (lighthouse) of Alexandria.

The structure is significant in the island’s Buddhist history as it represents the conflicts within the Theravada and Mahayana sectors of Buddhism. With the destruction and abandonment of Anuradhapura kingdom in the 11th century, the stupa was covered by jungle and later King Parakramabahu in 12th century renovate this stupa and it was rebuilt to the current height, a reduction to 71 meters.

The structure is no longer the tallest, but it is still the largest, with a base-area of 233,000 m2 (2,508,000 sq ft). Approximately 93.3 million bricks were used in its construction; the engineering knowledge behind the construction of this structure shows the significant development in the history of the island.
The compound covers approximately 5.6 hectares and is estimated to have housed 10,000 Buddhist monks. The stupa has a 8.5 m) deep foundation, and sits on bedrock.

The Ruwanwelisaya is a stupa, a hemispherical structure considered sacred to many Buddhists all over the world. This was built by King Dutugemunu during 140 B.C. He was famous for uniting Sri Lanka by defeating the Chola King Elara,
This is one of the the 8 places of veneration in the ancient sacred city of Anuradhapura. The stupa is one of the world’s tallest ancient monuments, standing at 103 m (338 ft) . It’s circumference is 290 m in length.

The Abhayagiri Monastery and the big Stupa or Dagaba was built by King Vattagamini Abhaya, He ruled Sri Lanka during the first century BC. and chose this site on his triumphant return after having had to flee from invaders. It is believed that over 5,000 monks dwelled there and it act as meditation and learning center like a university.

Event after passing thousand years , the monastery still offers a fascinating journey to ancient era. The Abhayagiri dagaba, is little over 100 metres, in height and one of the most striking attractions in Anuradhapura.
Also can visit to see stone statue of Lord Buddha seated , a cave temple, a pond cut from stone, and ancient moonstones carved from the rock at this sacred site. Abhayagiri Museum nearby displays ancient jewelry, artifacts, and pottery.

The sacred Jaya Sri Maha Bodhiya (Bo Tree) – which originates from the Sri Maha Bodhiya Bo Tree, in Bodhi Gaya India, which is said to have provided shelter for Lord Buddha as he attained enlightenment . This is one of most sacred worship place in island and  thousands of Buddhist pilgrims  flock to Anuradhapura daily.

This sacred Bo tree is to be the oldest tree in recorded history (over 2,200 years old) and one of the most sacred relics for Buddhists all over the world and was brought to the country by Sanghamiththa Thero , Daughter of King Darmashoka of India and was planted by the King Devanampiyatissa who was the ruling king of Sri Lanka during that period.

Original Sri Maha Bodhiya in India was destroyed by Mogul Regime of India during past and thousands of Buddhists devotees come from all over the world to Anuradhapura to worship the sacred Bo tree.