Sultan Qaboos Grand Mosque

Start with your feet. Your shoes are off now, and the marble under your soles is cool, even when the Muscat sun is hard and white above the courtyard. The surface is so polished that the arches seem to repeat themselves in it. Listen for a moment. The traffic of the city has dropped away. What is left is soft footsteps, a little wind moving through the arcades, and the low murmur of people speaking quietly without being asked to.

You are standing in the Sultan Qaboos Grand Mosque, the largest mosque in Oman. Sultan Qaboos bin Said, who ruled the country for nearly fifty years, commissioned it as a gift to his nation. Construction began in the mid-1990s and took around six years. The mosque opened in 2001. For a building of this size, that is fast work, and it came at a moment when Oman was building roads, schools, and hospitals at great speed.

Look at the colour of the walls around you. That warm, pale stone is sandstone brought from India, and a very large amount of it was shipped across the Arabian Sea to raise these walls. It gives the whole complex a soft, sandy tone that changes through the day. In the early morning it looks almost cream. By late afternoon it turns golden, and the shadows in the arches grow deep and blue.

Now lift your eyes to the minarets. There are five of them. The tallest rises at one corner of the complex, and four shorter towers mark the other corners. Many people explain the number five as a reference to the Five Pillars of Islam — the declaration of faith, prayer, charity, fasting, and pilgrimage. Whether or not the architects meant it exactly that way, it is the reading most local guides will give you.

As you walk along the arcades, notice the long covered corridors with their pointed arches. These shaded walkways are called riwaq, and they are a practical design as much as a beautiful one. They give shelter from the sun and let air move freely. Look up at the ceilings in these corridors. Many sections carry painted and carved patterns, and each panel can be slightly different from the next. It rewards a slow walk.

Here is something many visitors miss. The decoration across the complex draws on many Islamic traditions, not just Omani ones. You will see tilework with the blue and floral style of Persian design. You will see geometric patterns that recall North Africa and Central Asia. The mosque was planned to show the wider Islamic world gathered in one place, while the plain, calm stone keeps it rooted in Oman.

Before you enter the main prayer hall, take a breath. Then step inside and let your eyes adjust. The first thing most people feel is the softness under their feet. The entire floor is covered by a single hand-woven carpet. It was made in Iran by several hundred weavers working for years. When it was laid, it was the largest single-piece carpet in the world. It held that record for some time before a larger one was made elsewhere.

Kneel down if you are allowed, or simply look closely. The carpet contains well over a billion individual knots, each tied by hand. The design uses many shades, with deep reds and blues and natural dyes, and the patterns follow traditional Persian styles. It was woven in sections and then joined together inside this hall, so the seams were finished in place. That is why it fits the room so perfectly.

Now look up — straight up. Above the centre of the hall hangs the great chandelier. It was made in Germany with crystal by Swarovski and gold-coloured metalwork. It is many metres tall and was one of the largest chandeliers in the world when it was installed. Around it, smaller chandeliers hang beneath the dome. When the lights are on, the crystals throw tiny points of light across the walls and the ceiling.

The dome itself deserves a long look. Its inner surface is covered with detailed patterns that draw the eye upward toward the centre. Then turn to face the mihrab, the niche in the wall that shows Muslims the direction of Mecca for prayer. It is framed with ornate tilework and gilded details, and verses of the Quran run in calligraphy around it. This is the focus of the whole room.

The main hall is for men, and there is a separate, smaller prayer hall for women elsewhere in the complex. Together with the courtyards, the mosque can hold many thousands of worshippers at once. On Fridays and during Ramadan, the open spaces fill with people. Imagine this quiet courtyard packed with rows of worshippers, all moving together through the prayer. The space was built for that scale.

The complex is more than a place of prayer. It also includes a library, a lecture hall, and gardens with clipped hedges and palms. Sultan Qaboos wanted the mosque to be a centre of learning, open to curious visitors from other faiths as well as to Muslims. That is why non-Muslim visitors are welcome during set hours, and why staff are often happy to answer questions politely. Respectful dress is expected, and you will see visitors wearing robes or scarves.

As you leave, walk back out through the courtyard slowly. Feel the change from the cool shade of the hall to the heat on the marble. Look back once at the main minaret against the sky. Listen again — the footsteps, the wind in the arches, perhaps a bird in the gardens. Carry that quiet with you a little longer as you step back into the noise of Muscat.