National Institute for Mathematical Sciences

Information and Communications University (ICU), established in 1998, was a Korean university focused primarily on research and engineering in the field of information technology. It was located in the city of Daejeon and comprised an engineering school and a management school. As of 2006, about 20% of the enrolled graduate students were international students. Unlike other Korean universities, almost all courses were taught in English.On March 1, 2009, the university merged into KAIST as a separate department, under the name of the Information Technology Convergence Campus. After this controversial merger a consortium of Professors and Directors of Research Centres (at ICU) in South Korea founded The Information and Communications University (ICU) to perpetuate the legacy and continuity of the Information and Communications University through international training and distance education, with its subsidiary in Zambia (ICU Zambia).

Taejon Christian International School (TCIS) is a Pre-K to Grade 12 international school located in an area known as Techno Valley, a neighborhood in the northern part of Daejeon, South Korea. TCIS is a Three-Programme IB World School and provides boarding care through on-campus dormitory facilities. The school accepts foreign families living locally for work, families living abroad and looking for education in Korea, and local Korean families with connections to foreign culture and education abroad. Taejon Christian International School also plays a partnership role in globalization efforts in the city of Daejeon. Taejon Christian International School is a non-profit educational institution.

Hoedeok station (Korean:회덕역, Hanja:懷德驛) is a railway station on the Gyeongbu Line.

Daedeok Innopolis, formerly known as Daedeok Science Town, is the research and development district in the Yuseong-gu district in Daejeon, South Korea. The plan to concentrate research institutes and universities was made in 1967 and president Park Chunghee approved subsequent master planning in 1973. Now the district contains over 20 major research institutes and over 40 corporate research centers. There are 232 research and educational institutions to be found in Daejeon, many in the Daedeok region, among them the Electronics and Telecommunications Research Institute and the Korea Aerospace Research Institute. A number of IT venture companies have sprung up in this region due to the high concentration of Ph.Ds in the applied sciences. Korea has invested heavily in building up the research expertise for over 30 years, creating long-term research programs. Over 7,000 PhD researchers are in the sciences in Daedeok and it had the most application for patents during 2000–2011 among the National Industrial Complex. The "town" will provide a core for the International Science and Business Belt. The Daedeok Innopolis logo was created by the industrial design company INNO Design in Palo Alto, USA.

The Taeduk Radio Astronomy Observatory, or TRAO is an astronomical observatory owned and operated by Korea Astronomy and Space Science Institute. It is located in the science town of Taeduk, part of Daejeon, South Korea.

Daejeon Convention Center, also known as simply DCC is the convention center run by the Daejeon Tourism Organization and the sole convention center for the city.

Taejon Expo '93 was a three-month international exposition held between Saturday, August 7, 1993 and Sunday, November 7, 1993 in the central South Korean city of Daejeon (at the time spelled "Taejŏn").

Expo Science Park (Korean: 엑스포과학공원) is a science park in Yuseong District, Daejeon, South Korea, built for Taejŏn Expo '93. Facilities at Expo Park included a garden, amusement park, and observation tower. While the tower and some buildings remain, most of the expo buildings have now been removed. The Daejeon Convention Center became the first convention center in the city in 2008 and opened their second building in 2022. In September 2014, the Ministry of Science, ICT and Future Planning announced that Expo Science Park would be demolished in stages from November 2014 to August 2015. However, in recognition of their historic value, Hanbit Tower, the international conference room, and the simulation pavilion would be kept. In November 2014, the Shinsegae consortium won a bid to build the science complex within the park.In September 2017, Studio Cube, a state-run film studio complex on the site of the park, formally opened its doors to film and drama production.As of 2018, the site is hosting the headquarters complex for the Institute for Basic Science.In August 2021, the 2nd Expo Bridge, connecting the park with Seo-gu, opened.

The Institute for Basic Science (IBS; Korean: 기초과학연구원) is a Korean government-funded research institute that conducts basic science research and relevant pure basic research. IBS was established in November 2011 by the Lee Myung-bak administration as a research institute, later be a core of the International Science and Business Belt (ISBB) upon relocation of their headquarters from a rented property to their own campus in January 2018 using land reclaimed from the Taejŏn Expo '93 in Expo Science Park. Comprising 30 research centers with 68 research groups across the nation and a headquarters in Daejeon, IBS has approximately 1,800 researchers and doctoral course students. Around 30% of the researchers are from countries outside of South Korea. The organization is under the Ministry of Science and ICT. In 2011, the Korean government announced an investment of more than 2 trillion KRW (roughly US$2 billion) to build a heavy ion accelerator facility, named RAON, in northern Daejeon by 2021 before getting pushed back to 2025. The facility is expected to be the world's first device using both the isotope separator on-line (ISOL) and in-flight (IF) methods.From December 2018, the IBS Center for Climate Physics, headed by Axel Timmermann, began to utilize a 1.43-petaflop Cray XC50 supercomputer, named Aleph, for climate physics research. In that same year it was noted that the largest share of Clarivate Highly Cited Researchers in Korea are affiliated with IBS.

Daejeon Hanbat Arboretum (Korean: 한밭수목원; Hanja: 한밭樹木園) is an urban park and arboretum in Daejeon Metropolitan City, located in Seo District at the confluence of the Yuseongcheon and Gap rivers. Covering 387,000 sq/m (96 acres), it is the largest manmade urban arboretum in Korea, and one of the most popular attractions in Daejeon, with nearly 1 million annual visitors. The park is home to 1,787 plant species, including more than 1,100 species of trees and shrubs.The park is laid out thematically, with the West Garden reflecting the character and biodiversity of local mountains and forests, and the East Garden highlighting more exotic or non-native plant species, as well as hosting education and research facilities. The nearest metro station (located 1.5km to the south) is Government Complex Daejeon on Line 1, and multiple city bus routes stop at the Arboretum entrance. Major cycling routes along the river trail system also offer direct access to the arboretum via the Gap river. The park has seasonal opening hours, and there is no admission fee.

The National Science Museum is a national science museum in Daejeon, South Korea. It first opened in Seoul in 1926 and became a national museum in 1949. It moved to its current location in 1990 which is across the street from Expo Park which housed the Daejeon Expo in 1993. It received 1,795,076 visitors in 2017.

HLA is a time signal radio station in Daejeon, South Korea, operated by the Korea Research Institute of Standards and Science. Established on November 24, 1984, it transmits a 2 kW signal on 5 MHz (±0.01 Hz). Originally only transmitted for 7 hours per day (01:00–08:00), 5 days per week (M–F), it is continuous as of 2011. There are over 100 users of the signal in Korea.It broadcasts a time signal similar to that of the WWV and WWVH stations with which it shares a frequency: Second pulses are 5 ms (9 cycles) of 1800 Hz, beginning on the second Seconds 29 and 59 are omitted Minute markers are 800 ms of the same frequency Hour markers are 800 ms of 1500 Hz DUT1 is encoded using doubled pulses Voice time announcements are made after second 52 A time code is transmitted on a 100 Hz subcarrier