Phahonyothin Road or Highway 1 is a main road in Bangkok and one of the four primary highways in Thailand, which include Mittraphap Road, Sukhumvit Road, and Phet Kasem Road. It begins at Victory Monument in Bangkok and runs north to the Burmese border, with a total length of 1,005 km (624 mi).
Phahonyothin Road passing Chatuchak Park view towards Lat Phrao Square
Mae Sai Pass
Bangkok, officially known in Thai as Krung Thep Maha Nakhon and colloquially as Krung Thep, is the capital and most populous city of Thailand. The city occupies 1,568.7 square kilometres (605.7 sq mi) in the Chao Phraya River delta in central Thailand and has an estimated population of 9.0 million as of 2021, 13% of the country's population. Over 17.4 million people (25%) lived within the surrounding Bangkok Metropolitan Region at the 2021 estimate, making Bangkok an extreme primate city, dwarfing Thailand's other urban centres in both size and importance to the national economy.
From top, left to right: Wat Benchamabophit, Chao Phraya River skyline, Grand Palace, Giant Swing, traffic on a road in Watthana District, Democracy Monument, and Wat Arun
Engraving of the city from British diplomat John Crawfurd's embassy in 1822
The city's ceremonial name is displayed in front of Bangkok City Hall.
The city of Bangkok is highlighted in this satellite image of the lower Chao Phraya delta. The built-up urban area extends northward and southward into Nonthaburi and Samut Prakan provinces.