Stand on the eastern bank of the Chao Phraya River at sunrise and you can watch the first light catch the porcelain-encrusted spires of Wat Arun across the water. That crossing, from the dense temple district of Rattanakosin to the quieter west bank of Thonburi, is the single ride that explains Bangkok better than any street-level walk.
The city suits travellers who are happy to move between extremes in a single day: gilded palace halls in the morning, a canal boat in the afternoon, a market or a park by evening. It rewards those who plan around heat and traffic rather than fighting them.
This guide covers the major sights of Rattanakosin and the river, the museums and parks worth your time, and how to string them together if you only have one day.
Top things to do in Bangkok
1. The Grand Palace
The Grand Palace is the largest single sight in the city, so expect to spend at least a full morning or afternoon inside its walls. Within the palace grounds stands Wat Phra Kaew, the most sacred Buddhist temple in Thailand. It is not one building and has no living quarters for monks; instead it is a collection of highly decorated holy buildings and monuments, one of which houses the Emerald Buddha, the most sacred Buddha image in the country.
Do not throw away your entry ticket. It gives free entry to the Bang Pa-In Palace in Bang Pa-In, though it no longer covers the Dusit Palace, which has been closed to the public since 2017. Look out for the Chakri Maha Prasat Hall inside the grounds, built mostly in an Italian neoclassical style but topped with a traditional Thai roof.
2. Wat Pho
Wat Pho, near the Grand Palace, is home to the world's largest reclining Buddha image and a famed massage school. It pairs naturally with the palace as the second stop of a Rattanakosin morning.
Because the Grand Palace alone can take half a day, plan Wat Pho as a separate block rather than squeezing it in at the end.
3. Wat Arun
Take the ferry across the Chao Phraya River to Thonburi for Wat Arun. The main structure is about 60 to 88 m high and is surrounded by four smaller prangs, making it one of Thailand's most picturesque temples. If you climb it and look closely, you will see it is decorated with colourful broken Chinese porcelain pieces.
The temple is so recognisable that it appears on the inner part of all ten baht coins and became the logo of the Tourism Authority of Thailand. The ferry crossing from the Rattanakosin side is the simplest way to reach it.
4. Canal tour of the Chao Phraya and Thonburi backwaters
You can see the Chao Phraya River and the backwaters of the city by canal tour. Most of these boat trips start at the eastern bank of the Chao Phraya and then ply through the backwaters of Thonburi, taking in Wat Arun, the Royal Barges National Museum and a floating market.
Thonburi was largely undeveloped until the 20th century, so this is where some authenticity of the old canal-side way of life survives. Floating markets had disappeared by the 20th century but have been reinstated for tourism purposes and are a fun visit.
5. Jim Thompson's House
Many visitors take a tour through Jim Thompson's House, a mansion assembled by combining six traditional Thai-style houses near Siam Square. It is the best known of Bangkok's traditional Thai-style residences open to visitors.
Combine it with Siam Square, where you will also find the Bangkok Art and Culture Centre.
6. National Museum
The National Museum in Rattanakosin is dedicated to Thai history and archaeological remains, and is one of the district's main historical and cultural museums.
Rattanakosin's museums are mostly dedicated to history and culture, so group this with the Museum of Siam, the Rattanakosin Museum and the King Prajadhipok Museum if the subject matter interests you.
7. Museum of Siam and the Rattanakosin Museum
The Museum of Siam covers Thai history and culture, while the Rattanakosin Museum offers two guided tours with interactive displays about the history of old and modern Thai life.
Both sit in Rattanakosin, so they work well as an afternoon alternative when you want to be indoors.
8. Lumphini Park
Lumphini Park in Silom is the largest park in central Bangkok and a good way to escape the fumes. It is also the best place to launch a krathong down the pond or to launch a paper lantern into the sky during Loi Krathong.
Pair it with the Queen Saovabha Institute Snake Farm, also in Silom, which is a reliable choice because the staff takes good care of their snakes and works to inform the public about the risks associated with them.
9. Mahanakhon skyscraper observation deck
Great views of Bangkok from above open up from the Mahanakhon skyscraper's observation deck. It is the most direct way to make sense of the city's scale and its river.
Go on a clear day and treat it as a standalone stop rather than something to fit between temples.
10. Santichaiprakarn Park
Backpackers around Khao San Road can head for Santichaiprakarn Park, a small but fun park along the Chao Phraya River with a breezy atmosphere, usually with locals juggling or practising tricks. It is built around the 18th-century Phra Sumen Fort, with a nice view of the modern Rama VIII cable-stayed bridge.
It is an easy add-on to a Khao San Road evening rather than a destination in its own right.
11. Siam Ocean World
Siam Ocean World in Siam Square is a nice family attraction and the place to see the largest aquarium in Southeast Asia. It has a steep price tag, so decide in advance whether it earns a slot in your itinerary.
It sits in Siam Square, so it combines naturally with the Bangkok Art and Culture Centre and Jim Thompson's House.
12. Bangkok Art and Culture Centre
Siam Square features the Bangkok Art and Culture Centre, which has temporary art exhibitions throughout the year. Bangkok has a small but vocal art community, and this is the most central place to sample it.
If you want more, visit the National Gallery or The Queen's Gallery, or one of the numerous smaller galleries spread over the city.
13. Hua Lamphong Railway Station and the European-style buildings
Hua Lamphong Railway Station, Bangkok's main railway station, was designed by Italian architects and built in an Italian neo-Renaissance style. Other notable European-style buildings include the Italian Old Customs House, the Danish East Asiatic Company headquarters and the Art Deco-style General Post Office.
The greatest concentration of European buildings can be found in Rattanakosin and Yaowarat, so fold this into a walk through those districts rather than making a separate trip.
14. Festivals: Songkran, Loi Krathong and the Trooping of the Colours
All of Thailand's major festivals are celebrated in Bangkok. Songkran, the traditional Thai New Year, falls in the middle of April: Khao San Road becomes a water fight, while more respectable celebrations are held at Sanam Luang, where the revered Phra Phuttha Sihing image is displayed and bathed by devotees, and at the Wisut Kasat intersection, where a Miss Songkran beauty contest is held alongside merit-making and entertainment.
Loi Krathong, the Festival of Lights, usually takes place in November, with krathongs floated on rivers, canals and ponds. The Trooping of the Colours in early December is held in the Royal Plaza near the equestrian statue of King Rama V in Dusit, where members of the elite Royal Guards swear allegiance to the King and march past members of the Royal Family.
15. Yaowarat and Phahurat
Yaowarat and Phahurat make up a multicultural district worth a full day of walking, and the area holds one of the greatest concentrations of European-influenced buildings in the city. Chinese New Year in January or February brings grandiose and colourful Chinese lion and dragon processions through Yaowarat.
Treat this as its own walking day rather than an add-on to a temple morning.
If you only have one day
Morning: Start at The Grand Palace and Wat Phra Kaew, which will take a full morning on its own. Keep your entry ticket for the free entry to Bang Pa-In Palace later in your trip.
Afternoon: Walk to Wat Pho for the reclining Buddha, then take the ferry across the Chao Phraya River to Wat Arun in Thonburi. If time allows, extend the river time with a canal tour through the Thonburi backwaters.
Evening: Head to Santichaiprakarn Park by Khao San Road for the breezy riverside atmosphere around the 18th-century Phra Sumen Fort and the view of the Rama VIII cable-stayed bridge, then stay in the area for the evening.
Frequently asked questions
Which sights make up the top three in Bangkok?
Out of Bangkok's hundreds of temples, the Grand Palace, Wat Pho and Wat Arun usually make up the top three.
How long should I allow for the Grand Palace?
The Grand Palace has an immense size, so expect to spend at least a full morning or afternoon there.
Does my Grand Palace ticket get me into anywhere else?
Do not throw away the entry ticket, as it gives free entry to the Bang Pa-In Palace in Bang Pa-In. It no longer covers the Dusit Palace, which has been closed to the public since 2017.
Where can I see the city from above?
Great views of Bangkok from above open up from the Mahanakhon skyscraper's observation deck.
Pick your dates around a festival or a clear morning on the river, and the rest of the itinerary will fall into place.