Seoul  is the capital and largest metropolis of South Korea, forming the heart of the Seoul Capital Area, which includes the surrounding Incheon metropolis and Gyeonggi province, the world's second largest metropolitan area with over 25.6 million people. It is home to over half of South Koreans along with 632,000 international residents. With a population of over 10 million, the megacity is the largest city proper in the OECD.

Situated on the Han River, Seoul's history stretches back more than 2,000 years when it was founded in 18 BCE by Baekje, one of the Three Kingdoms of Korea. It continued as the capital of Korea under the Joseon Dynasty. The Seoul Capital Area contains five UNESCO World Heritage Sites: Changdeok Palace, Hwaseong Fortress, Jongmyo Shrine, Namhansanseong and the Royal Tombs of the Joseon Dynasty. Seoul is surrounded by mountains, the tallest being Mt. Bukhan, the world's most visited national park per square foot. Modern landmarks include the iconic N Seoul Tower, the gold-clad 63 Building, the neofuturistic Dongdaemun Design Plaza, Lotte World, the world's second largest indoor theme park, Moonlight Rainbow Fountain, the world's longest bridge fountain and the Sevit Floating Islands. The birthplace of K-pop and the Korean Wave, Seoul was voted the world's most wanted travel destination by Chinese, Japanese and Thai tourists for three consecutive years in 2009–2011 with over 12 million international visitors in 2013, making it the world's 10th most visited city and 6th largest earner in tourism.

Situated on the most south-eastern portion of the Korean peninsula, Busan is Korea's second largest city and the number 1 trading port. Korea's first truly international city, Busan (Pusan) connects Asia, Europe, and North America. This geopolitically situated harbor city sits adjacent to the Korean Straits and Japan, bringing about an interchange of trade and tourism. This intercultural current has made Busan into the international metropolis it is today. Busan has hosted such international events as the 2002 14th Asian Games, the final match of the Korea/Japan World Cup, and since 1995 has annually hosted the Pusan International Film Festival. Additionally, the Bexco Exhibition and Convention Center in Busan brings in people from all over the world for international conventions and exhibits. Shopping in this port city has also become quite popular. Lotte Department Store, Choryang Arcade for Foreigners, Nampo-dong Street, Gukje Market, and Seomyeon market, located in the center of the city, are sought after places by Japanese and other foreign tourists. 

Andong is the home of Confucianism in Korea. During the Joseon Dynasty, Andong attracted scores of Confucian scholars becoming a pioneering city in Confucian thought. This city also contained the highest number of private schools from the Joseon Dynasty as well as Confucian schools. To this day, Andong still has around 26 private schools from the Joseon Dynasty. This city also acted as a home to the noble class during the Joseon period. Many of the homes of the noble class are still standing in Andong; some are kept up by the relatives of the original owner. Certain homes have established guest house accommodations. Two of the most famous places are Jirye Art Village and Jeonju Ryussi-musiljongtaek (Ryu noble family’s estate). These are great places to experience the essence of Korea’s traditional lifestyles.

Gyeongju (경주), located in southeast Korea, was the capital of the Silla Kingdom for 992 years (BC 57-935), the longest surviving kingdom in the history of Korea. Not only is it astounding that it was ruled by 56 kings spanning a period of almost a thousand years, it is equally remarkable that the kingdom of Silla originally started as a small tribal state and later expanded to occupy more than half of the Korean peninsula. The area was initially known as ‘Seorabeol' (서라벌) or 'Gyerim' (계림), and it wasn’t until the end of the era in 935 that it was first referred to as 'Gyeongju.'
Living up to its former glory as the capital of the longest-surviving kingdom in Korea, Gyeongju still shines today, more than a millennium after the kingdom’s demise. Buddhism was introduced in Silla in the 6th century and played a significant role in strengthening royal authority and unifying the people, becoming the foundation of the area's art, tradition, and culture. Consequently, Gyeongju is the home of the greatest Buddhist art treasures in Korea, and is the nation's most popular fieldtrip destination.

Located in central Korea just south of Seoul, Daejeon offers a convenient transportation network with access to every region in the country. For this reason, it has grown to be the most advanced commercial and industrial city in the Chungcheong-do region.
The Daejeon City Tour offers a variety of themed courses including a science tour, history tour, and ecological tour, so travelers can enjoy tours tailored to their interests.