Wat Rajanaddaram Worawihan is one of Bangkok’s most distinctive royal temples, famous for the iconic Loha Prasat (Metal Castle). Located near Rattanakosin Old Town, this temple offers visitors a peaceful and culturally rich experience away from crowded tourist spots.

1. History of Wat Rajanaddaram

Built during the reign of King Rama III in the 19th century, Wat Rajanaddaram was constructed for royal niece Princess Somanass. The temple reflects strong royal patronage and Buddhist symbolism.

In  1963, with Marshal Sarit Thanarat as Prime Minister at that time, the metal castle was a red plaster waving structure. The mandapa was painted white, and attempts have been made to preserve as much as possible the traditional pattern of the castle metal during the reign of King Rama III.

When the government celebrated the 50th anniversary of His Majesty the King’s throne during the year 1995-1996, His Majesty King Bhumibol Adulyadej (Rama IX) graciously scheduled the ceremony of packing the relics enshrined at the Prasat Metal Busabok Pagoda as the first ceremony of His Majesty the King’s charity and proceeded to enshrine the relics. On Monday, February  27, the last metal restoration project took place in 1995.

That year, there was a Major General of Weapons, Silver Scent. The National Artist of Architecture, participating in the castle metal restoration project, designed the thatch material and roof ornaments in black metal and copper. It turns black, just like some people saw in childhood The metal castle was restored in 2012-2017. This makes it have a beautiful golden mansard as you can see at the temple nowadays.

2. The Iconic Loha Prasat

Loha Prasat, meaning “Metal Castle,” is one of only three such structures ever built in the world. It features 37 metal spires symbolizing the virtues leading to enlightenment.

3. Royal Temple Significance

Wat Rajanaddaram is classified as a royal temple, reflecting its importance in Thai history and Buddhism. The layout and architecture emphasize harmony, discipline, and spiritual progress.

Pride of the architecture inside the temple

Since the Loha Prasart of Wat Ratchanadda is the only one of its kind in existence today, in 2005 the temple was submitted to UNESCO for consideration as a future World Heritage Site.

The Loha Prasat is a functioning Buddhist temple and a significant place of worship for the local community. Inside the temple, there are statues of Buddha and important religious relics. Those want to worship the Buddha can buy flowers, incense, candles. 

Aside from the Loha Prasart, the other main attraction to Wat Ratchanadda is the amulet market which extends behind the temple.  The market is very popular but is not the cheapest place to buy an amulet and Buddhists monk religious utensil.

4. Location & Transportation

The temple is located near Democracy Monument and can be reached easily by taxi, tuk-tuk, or walking from nearby attractions in Old Town.

5. Visiting Experience

Visitors can walk around the temple grounds, climb Loha Prasat, meditate, and observe local worship. The atmosphere is calm and less crowded compared to major temples.

Open Time

Visitors to the Loha Prasat are requested to make a Baht 50, in box just inside the entrance gate at the base of the structure.

Wat Ratchanadda is open during 8.30 am to 5 pm.

6. Photography Opportunities

The geometric lines of Loha Prasat and panoramic views from the top make this temple a favorite for photographers.

7. Dress Code & Etiquette

As with all Thai temples, visitors should dress modestly with covered shoulders and knees. Shoes must be removed before entering sacred areas.

8. Nearby Attractions

Nearby highlights include Democracy Monument, Golden Mount (Wat Saket), and Old Town walking streets.

Final Thoughts

A Bangkok temple tour to Wat Rajanaddaram offers more than sightseeing — it’s a journey into Thai royal history, Buddhist philosophy, and architectural uniqueness.