Bulguksa was built in 528, and it is now home to seven National treasures of South Korea, including Dabotap and Seokgatap stone pagodas, Cheongun-gyo (Blue Cloud Bridge), and two gilt-bronze statues of Buddha. The temple is classified as Historic and Scenic Site No. 1 by the South Korean government. In 1995, Bulguksa was added to the UNESCO World Heritage List together with the Seokguram Grotto, which lies four kilometers to the east (Source: Wikipedia).

Cheomseongdae is an astronomical observatory in Gyeongju, South Korea. Cheomseongdae means star-gazing tower in Korean. Cheomseongdae is the oldest observatory in East Asia, and is the oldest scientific installation on Earth. It dates to the 7th century to the time of kingdom of Silla, which had its capital in Gyeongju. Cheomseongdae was designated as the country's 31st national treasure (Source: Widipedia).

These two stone pagodas were build in 751, the 10th year of the Shilla king Gyeongdeok, are located in the temple of Bulguksa in Gyeongju. They are currently designated as National Treasure number 20 and 21. No pairs of pagodas in the world could be so different from one another and yet in harmony than the ones at Bulguksa. The two pagodas reflect a story in the Lotus sutra (Source: Wikipedia).

The Seokguram Grotto, consturcted in 750, is a hermitage and part of the Bulguksa temple complex. It lies four kilometers east of the temple on Mt. Tohamsan, in Gyeongju, South Korea. It is classified as National Treasure No. 24. In 1995, Seokguram was added to the UNESCO World Heritage List together with the Bulguksa Temple. It exemplifies some of the best Buddhist sculptures in the world (Source: Wikipedia).

The Tripitaka Koreana or Palman Daejanggyeong ("Eighty-Thousand Tripitaka") is a Korean collection of the Tripitaka (Buddhist scriptures, and the Sanskrit word for "three baskets"), carved onto 81,258 wooden printing blocks in the 13th century. It is the world's most comprehensive and oldest intact version of Buddhist canon in Hanja script, with no known errors or errata in the 52,382,960 characters which are organized in over 1496 titles and 6568 volumes (Source: Wikipedia).

Namdaemun, officially the Sungnyemun, is one of the Eight Gates in the Fortress Wall of Seoul, South Korea, which surrounded the city in the Joseon Dynasty. The gate, which was begun in the 14th century, is a historic pagoda-style gateway, and is now listed first among the National Treasures of South Korea.

It was originally built in 1412, reconstructed in 1867, and is currently designated as a National Treasure no. 224. It was a pavilion of Gyeongbokgung (Palace) where royal banquets were held in the Joseon Dynasty.

Hunminjeongeum (lit. The Correct/Proper Sounds for the Instruction of the People) is a document describing an entirely new and native script for the Korean language. The script was initially named after the publication, but later came to be known as Hangul. In 1446, under the auspices of King Sejong the Great, It was created so that the common people illiterate in Chinese characters could accurately and easily read and write the Korean language (Source: Wikipedia).

In 1434, during the reign of King Sejong the Great, this water clock was made by Jang Yeong-sil which would mark the hour automatically with the sounds of a bell, gong, and drum. That clock, Jagyeongnu ("self-striking water clock"), was used to keep the standard of time in the Joseon Dynasty. It is the 229th National Treasure of South Korea (Source: Wikipedia).

Geobukseon (a turtle-shape ship) was a type of large warship that was used intermittently by the Royal Korean Navy during the Joseon Dynasty from the early 15th century up until the 19th century. Korean admiral Sunsin Lee is credited with designing the ship. His turtle ships were equipped with at least five different types of cannon. Turtle ships participated against Japanese naval forces that supported Toyotomi Hideyoshi's attempts to conquer Korea from 1592-1598 (Source: Wikipedia).

This is a Korean book compiled by the royal physician, Heo Jun (1546 – 1615) and was first published in 1613 during the Joseon Dynasty, and it is on UNESCO’s Memory of the World Programme in 2009. It is Known as one of the classics in the history of oriental medicine, and it was published and used in many countries including China and Japan, and remains a key reference work for the study of oriental medicine (Source: Wikipedia).

Hwaseong (Brilliant Castle/ Fortress), the wall surrounding the centre of Suwon, the provincial capital of Gyeonggi-do, South Korea, was built in the late 18th century by King Jeongjo of the Joseon Dynasty to honor and house the remains of his father Prince Sado, who had been murdered by being locked alive inside a rice chest by his own father King Yeongjo having failed to obey his command to commit suicide. UNESCO designated the fortress a World Heritage site in 1997 (Source: Wikipedia).