Jaya Sri Maha Bodhi, a sacred Bo tree or Ficus religiosa that is located in Anuradhapura's Mahamewna Gardens, Sri Lanka, is the Jaya Sri Maha Bodhi. It is the closest living connection to Gautama Buddha and also the oldest tree that has been planted by humans. Lord Gautama Buddha, a 2,600-year-old Indian saint, sat down against an Esathu tree, on the banks the Neranjana River, Bodhgaya. The Buddha is believed to have reached enlightenment at this time, when he was seated against the tree. The tree was also given a revered status for his actions. It was dubbed the Bodhi tree and pilgrims were able to see it even during the Buddha's lifetime.

Ruvanveli seya, the first stupa built in Sri Lanka, is revered with great respect. It is also known as Mahaseya, Ratnamali and Swarnamali seya in different literary works. The foundation of this stupa was laid by King Dutugemunu (161 to 137 BC). It is bubble-shaped. It measures 150 feet in height. The relic chamber was used for paintings. Most of the Anuradhapura rulers, as well as the whole country's rulers, contributed to its restoration after King Saddhatissa. The unique feature of this stupa is its elephant-faced wall that runs between the stone-paved terraces and the flight stairs. In the same way, there are also four vahalkadas. The stupa now stands at 350 feet in height and has a circumference of 300 feet. Ruvanveli Maha Seya, an important monument, has been venerated by both local and international Buddhists. Each July, a special offering with one hundred thousand jasmine blooms is made to mark reverence.

Mirisawetiya Dagoba was said to have been the first dagoba constructed by King Dutugemunu, the Great, who ruled Ceylon from 161 to 137 BC. It measured sixty feet high by five hundred and sixty inches in circumference. Later, it was rebuilt and expanded by the various Ceylon kings. Historical legends mention this dagoba as one of the most important dagobas at that time. This dagoba can be found in the Anuradhapura District, North Central Province of Sri Lanka. It is believed that it was built by Gautama Buddha at his feet in a sacred location. According to history, one hundred ninety thousand Arahants visited this area to offer and build this dagoba. Anuradhapura, Ceylon's capital during 161 to 137 BC was when this dagoba construction was completed.

Thuparama was the first stupa to be built in Nepal after Buddhism's introduction in the third century BC. Mahavansa says it was named Thuparama due to the fact that the stupa (arama) and monastery complex are situated together. King Devanampiyatissa built the stupa to enshrine the right collar bone. King Devanampiyatissa and Polonnaruva have since renovated the stupa. The vatadage, a round relic chamber built around the stupa by King Vasabha (65–109 AC), is a unique architectural feature. The current height of the stupa stands at 63 feet and its diameter is 59 feet. The surrounding buildings include a hospital, image house and a bhikkhuni-arama (chapter house) building.

Abhayagiri Stupa is the second-largest stupa in Sri Lanka. It was built by King Vattagamini, alias Valagamba (89–77 BC). It covers an area of almost 200 hectares. Bhikkhu Fahsein, who visited Sri Lanka in fifth century, stated that there were three thousand bhikkhus living in the Mahavihara and five hundred in the Abhayagiri. Abhayagiri, which was central to Mahayana Buddhism, reached its peak during the reign of King Mahasen. The presence of Buddhist buildings in Abhayagri's environs indicates that this complex was an important educational institution locally as well as internationally.

King Mahasen's Jetavana Stupa is approximately 400 feet high. It is also the third-largest monument and tallest brick-built monument. Nine gold folios, containing the Mahayana Sutra, The Pragnaparamita Sutra were found during a recent excavation. Four vahalkadas (frontispieces), face the four cardinal directions. The mound that was higher than the ground level is where the stupa was built. Archaeological excavations revealed remnants of an elephant wall surrounding the terrace. Other special artifacts have been discovered in excavations, including coins and Chinese ceramicware. The Central Cultural Fund has restored the entire stupa.

In Sri Lanka, Lovamahapaya, which is also known as the Brazen Palace or Lohaprasada, is a place of worship. The stupa Ruvanvelisaya and the Great Bodhi Tree of Anuradhapura are located in ruins that have hundreds of stone pillars. A monastic structure with nine stories built by King Dutugemmunu during the 2nd century BC can be found here.

The legend surrounding the temple Lankaramaya in Sri Lanka is well-known. Invaders from the kingdom attacked him as the rightful king. That year, he hid out in a location called Silasobha Khandaka and made plans. Due to his successful plans, the invaders were destroyed in the same year, which allowed him to become king after the unsuccessful invasion.

Sri Lanka is a stunning island that boasts a wealth of religious and cultural monuments due to its rich historical past, making it a popular tourist destination. Four mountains are known as Mihinthale, and the highest of them stands at around 1,000 feet. The mountains of Rajagiri Lena, Anaikutti, Ath Vehera, and Mihinthalawa are found in this area. At the summit of the prominent mountain Mihinthalawa are the Aradhana gala (Invitation Rock) and the famous Mahaseya stupa.