Bangkok is the largest city in Thailand, as well as being it's capital and main port. It is the cultural, educational, political and economic center of Thailand, as well as being the only metropolis. Bangkok has grown and expanded to include the area Thon Buri, which had at one point been the capital of Siam, and the combined area is commonly known as Krung Thep Mahanakhon. The area of Bangkok, including Thon Buri and other provinces, is approximately 23 miles (37 km).

The population of Bangkok is close to 9 million people. This very highly populated city is currently faced with pollution problems in addition to traffic congestion and critical housing shortages, like any other large city. Bangkok's weather is hot and humid year round with temperatures ranging from 26 to 31 degrees C (78 - 90 degrees F).Most residents of Thailand are native Thais, although there is an influx of Chinese immigrants as well as Indians, Arabs, Malays and Europeans. Most Thais are welcoming and friendly to visitors to Bangkok, as it is one of the most highly visited cities in Southeast Asia. In addition, Bangkok has an important influence on Southeast Asia's industrial and financial sectors.

One of the busiest airports in Southeast Asia is located just outside Bangkok, Don Muang International Airport. Bangkok is also well-known for its water travel by way of its rivers. Bangkok is also the center of transportation in Thailand with major roads and railways branching out to various parts of the country.In Bangkok, numerous beautiful temples can be found featuring traditional Thai architecture. The old sections of Bangkok are immensely popular tourist spots, particularly with the royal Grand Palace. Bangkok is an interesting blend of traditional buildings and modern skyscrapers.