Bangkok is the capital city of Thailand located in the Chao Phraya River delta. It has a tropical climate with year-round warm temperatures over 30 degrees Celsius. Bangkok is a cosmopolitan city with notable attractions like the Grand Palace, National Museum, and Vimanmek Mansion. The Thai baht is the currency and Thai is the official language, although English is also widely spoken. Popular activities for tourists include visiting temples, training in Thai kickboxing, and exploring markets by boat.