Wat Ratchanatdaram: Bangkok’s Overlooked Architectural Marvel

While most visitors flock to Bangkok’s Grand Palace or Wat Pho, the stunning Wat Ratchanatdaram Worawihan quietly stands as one of the city’s most unique temple complexes, crowned by its magnificent Loha Prasat (“Metal Castle”). Built in 1846 by King Rama III for his beloved granddaughter, this overlooked gem combines spiritual significance with extraordinary architecture, offering a peaceful retreat just minutes from Bangkok’s busiest attractions.

The Story Behind the Spires

Wat Ratchanatdaram’s most striking feature is its Loha Prasat, a 36-meter-tall structure adorned with 37 black iron spires (originally white before restoration) representing the 37 virtues toward enlightenment in Buddhism.

Though called the “Metal Castle,” it’s actually constructed of brick and mortar, with three distinct tiers (24 spires at the base, 12 in the middle, and 1 crowning spire) leading to a sacred relic chamber housing Buddha’s remains. The temple complex also includes beautifully crafted structures like the golden lacquer and stained-glass adorned ubosot (ordination hall), which enshrines the principal Buddha image Phra Settamuni.

The temple was commissioned by King Rama III as a gift for his granddaughter, Princess Somanass Waddhanawathy, with its design overseen by royal architect Chao Phraya Yommarat (Bunnag). Inspired by ancient Indian and Sri Lankan architecture, the Loha Prasat is one of only three such structures remaining in the world. The temple has undergone several modifications over time but remains an important spiritual and cultural landmark, featuring adjacent spaces like the King Rama II Memorial Plaza.

What makes Wat Ratchanatdaram particularly fascinating is its blend of artistic styles and spiritual symbolism. The Loha Prasat’s hollow center contains a 67-step spiral staircase leading to panoramic views, while optical illusions at the entrance allow visitors to see miniature versions of the castle through special mirrors. The temple grounds also feature lush gardens and quieter prayer halls, making it an ideal spot for contemplation away from Bangkok’s crowds.

Things to Do at Wat Ratchanatdaram

Climb Loha Prasat 

Ascend the spiral staircase for rooftop views and visit the sacred relic chamber at the top. Feel the cool breeze as you emerge above Bangkok's skyline.

Meditate in the Wihan

Find peace before the serene Phra Phuttha Chuthamnarasop Buddha image. The hall's acoustics amplify chanting for a mesmerizing effect.

Photograph the Architecture

Capture the striking spires, golden gables, and optical illusion displays. Morning light makes the black spires glow against blue skies.

Before You Go

• Opening Hours: 8:00 AM–5:00 PM daily.

• Entrance Fee: 20 THB (foreigners); 10 THB (Thai adults); free for children under 15.

  All entry fees directly support temple maintenance and preservation. Additional donations are welcome at the entrance to help sustain this historic site for future generations.

• Dress Code: Cover shoulders & knees - sarongs available for borrow if needed

• Additional Tip:

  As you explore Loha Prasat, you'll encounter numerous Buddha images and English information boards explaining the temple's spiritual significance. Don't miss the fascinating optical illusion at the entrance - when you hold up a special plastic viewer to the mirror, it magically transforms into a miniature 3D model of the entire castle structure!

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