"dome construction"

#13187896

12 January 2026

A worker participates in the removal of the three-ton copper observatory dome from the Round Tower in Copenhagen, Denmark, on January 12, 2026. After nearly 60 years of exposure to wind and weather, the observatory's copper roof begins to leak, making restoration of the dome necessary. The aim is to future-proof the observatory and the tower itself, ensuring that King Christian IV's historic ''Star Castle'' can be preserved and experienced by future generations.

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#13172457

9 January 2026

The mosque of Ibn Tulun is commissioned by Ahmad Ibn Tulun, 'Abbasid governor of Egypt. Construction begins in 263 AH/876 AD and finishes in 265 AH/879 AD. It is located on Jebal Yashkur (in modern-day Ahmad Ibn Tulun Square, Sayyida Zaynab). The mosque is distinguished by its spiral minaret, which echoes the designs of the al-Abbas mosque in Samarra, Iraq. The arches and the windows of the mosque's courtyard contain stucco designs of geometric and floral patterns. A water fountain is positioned in the center of the courtyard, surmounted by a dome supported on marble columns. The interior of the mosque contains six mihrabs in Cairo, Egypt, on January 9, 2026.

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#13172459

9 January 2026

The mosque of Ibn Tulun is commissioned by Ahmad Ibn Tulun, 'Abbasid governor of Egypt. Construction begins in 263 AH/876 AD and finishes in 265 AH/879 AD. It is located on Jebal Yashkur (in modern-day Ahmad Ibn Tulun Square, Sayyida Zaynab). The mosque is distinguished by its spiral minaret, which echoes the designs of the al-Abbas mosque in Samarra, Iraq. The arches and the windows of the mosque's courtyard contain stucco designs of geometric and floral patterns. A water fountain is positioned in the center of the courtyard, surmounted by a dome supported on marble columns. The interior of the mosque contains six mihrabs in Cairo, Egypt, on January 9, 2026.

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#13172464

9 January 2026

The mosque of Ibn Tulun is commissioned by Ahmad Ibn Tulun, 'Abbasid governor of Egypt. Construction begins in 263 AH/876 AD and finishes in 265 AH/879 AD. It is located on Jebal Yashkur (in modern-day Ahmad Ibn Tulun Square, Sayyida Zaynab). The mosque is distinguished by its spiral minaret, which echoes the designs of the al-Abbas mosque in Samarra, Iraq. The arches and the windows of the mosque's courtyard contain stucco designs of geometric and floral patterns. A water fountain is positioned in the center of the courtyard, surmounted by a dome supported on marble columns. The interior of the mosque contains six mihrabs in Cairo, Egypt, on January 9, 2026.

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#13172468

9 January 2026

The mosque of Ibn Tulun is commissioned by Ahmad Ibn Tulun, 'Abbasid governor of Egypt. Construction begins in 263 AH/876 AD and finishes in 265 AH/879 AD. It is located on Jebal Yashkur (in modern-day Ahmad Ibn Tulun Square, Sayyida Zaynab). The mosque is distinguished by its spiral minaret, which echoes the designs of the al-Abbas mosque in Samarra, Iraq. The arches and the windows of the mosque's courtyard contain stucco designs of geometric and floral patterns. A water fountain is positioned in the center of the courtyard, surmounted by a dome supported on marble columns. The interior of the mosque contains six mihrabs in Cairo, Egypt, on January 9, 2026.

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#13172471

9 January 2026

The mosque of Ibn Tulun is commissioned by Ahmad Ibn Tulun, 'Abbasid governor of Egypt. Construction begins in 263 AH/876 AD and finishes in 265 AH/879 AD. It is located on Jebal Yashkur (in modern-day Ahmad Ibn Tulun Square, Sayyida Zaynab). The mosque is distinguished by its spiral minaret, which echoes the designs of the al-Abbas mosque in Samarra, Iraq. The arches and the windows of the mosque's courtyard contain stucco designs of geometric and floral patterns. A water fountain is positioned in the center of the courtyard, surmounted by a dome supported on marble columns. The interior of the mosque contains six mihrabs in Cairo, Egypt, on January 9, 2026.

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#13172475

9 January 2026

The mosque of Ibn Tulun is commissioned by Ahmad Ibn Tulun, 'Abbasid governor of Egypt. Construction begins in 263 AH/876 AD and finishes in 265 AH/879 AD. It is located on Jebal Yashkur (in modern-day Ahmad Ibn Tulun Square, Sayyida Zaynab). The mosque is distinguished by its spiral minaret, which echoes the designs of the al-Abbas mosque in Samarra, Iraq. The arches and the windows of the mosque's courtyard contain stucco designs of geometric and floral patterns. A water fountain is positioned in the center of the courtyard, surmounted by a dome supported on marble columns. The interior of the mosque contains six mihrabs in Cairo, Egypt, on January 9, 2026.

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#13172476

9 January 2026

The mosque of Ibn Tulun is commissioned by Ahmad Ibn Tulun, 'Abbasid governor of Egypt. Construction begins in 263 AH/876 AD and finishes in 265 AH/879 AD. It is located on Jebal Yashkur (in modern-day Ahmad Ibn Tulun Square, Sayyida Zaynab). The mosque is distinguished by its spiral minaret, which echoes the designs of the al-Abbas mosque in Samarra, Iraq. The arches and the windows of the mosque's courtyard contain stucco designs of geometric and floral patterns. A water fountain is positioned in the center of the courtyard, surmounted by a dome supported on marble columns. The interior of the mosque contains six mihrabs in Cairo, Egypt, on January 9, 2026.

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#13172481

9 January 2026

The mosque of Ibn Tulun is commissioned by Ahmad Ibn Tulun, 'Abbasid governor of Egypt. Construction begins in 263 AH/876 AD and finishes in 265 AH/879 AD. It is located on Jebal Yashkur (in modern-day Ahmad Ibn Tulun Square, Sayyida Zaynab). The mosque is distinguished by its spiral minaret, which echoes the designs of the al-Abbas mosque in Samarra, Iraq. The arches and the windows of the mosque's courtyard contain stucco designs of geometric and floral patterns. A water fountain is positioned in the center of the courtyard, surmounted by a dome supported on marble columns. The interior of the mosque contains six mihrabs in Cairo, Egypt, on January 9, 2026.

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#13172492

9 January 2026

The mosque of Ibn Tulun is commissioned by Ahmad Ibn Tulun, 'Abbasid governor of Egypt. Construction begins in 263 AH/876 AD and finishes in 265 AH/879 AD. It is located on Jebal Yashkur (in modern-day Ahmad Ibn Tulun Square, Sayyida Zaynab). The mosque is distinguished by its spiral minaret, which echoes the designs of the al-Abbas mosque in Samarra, Iraq. The arches and the windows of the mosque's courtyard contain stucco designs of geometric and floral patterns. A water fountain is positioned in the center of the courtyard, surmounted by a dome supported on marble columns. The interior of the mosque contains six mihrabs in Cairo, Egypt, on January 9, 2026.

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#13172517

9 January 2026

The mosque of Ibn Tulun is commissioned by Ahmad Ibn Tulun, 'Abbasid governor of Egypt. Construction begins in 263 AH/876 AD and finishes in 265 AH/879 AD. It is located on Jebal Yashkur (in modern-day Ahmad Ibn Tulun Square, Sayyida Zaynab). The mosque is distinguished by its spiral minaret, which echoes the designs of the al-Abbas mosque in Samarra, Iraq. The arches and the windows of the mosque's courtyard contain stucco designs of geometric and floral patterns. A water fountain is positioned in the center of the courtyard, surmounted by a dome supported on marble columns. The interior of the mosque contains six mihrabs in Cairo, Egypt, on January 9, 2026.

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#13172523

9 January 2026

The mosque of Ibn Tulun is commissioned by Ahmad Ibn Tulun, 'Abbasid governor of Egypt. Construction begins in 263 AH/876 AD and finishes in 265 AH/879 AD. It is located on Jebal Yashkur (in modern-day Ahmad Ibn Tulun Square, Sayyida Zaynab). The mosque is distinguished by its spiral minaret, which echoes the designs of the al-Abbas mosque in Samarra, Iraq. The arches and the windows of the mosque's courtyard contain stucco designs of geometric and floral patterns. A water fountain is positioned in the center of the courtyard, surmounted by a dome supported on marble columns. The interior of the mosque contains six mihrabs in Cairo, Egypt, on January 9, 2026.

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#13172524

9 January 2026

The mosque of Ibn Tulun is commissioned by Ahmad Ibn Tulun, 'Abbasid governor of Egypt. Construction begins in 263 AH/876 AD and finishes in 265 AH/879 AD. It is located on Jebal Yashkur (in modern-day Ahmad Ibn Tulun Square, Sayyida Zaynab). The mosque is distinguished by its spiral minaret, which echoes the designs of the al-Abbas mosque in Samarra, Iraq. The arches and the windows of the mosque's courtyard contain stucco designs of geometric and floral patterns. A water fountain is positioned in the center of the courtyard, surmounted by a dome supported on marble columns. The interior of the mosque contains six mihrabs in Cairo, Egypt, on January 9, 2026.

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#13172528

9 January 2026

The mosque of Ibn Tulun is commissioned by Ahmad Ibn Tulun, 'Abbasid governor of Egypt. Construction begins in 263 AH/876 AD and finishes in 265 AH/879 AD. It is located on Jebal Yashkur (in modern-day Ahmad Ibn Tulun Square, Sayyida Zaynab). The mosque is distinguished by its spiral minaret, which echoes the designs of the al-Abbas mosque in Samarra, Iraq. The arches and the windows of the mosque's courtyard contain stucco designs of geometric and floral patterns. A water fountain is positioned in the center of the courtyard, surmounted by a dome supported on marble columns. The interior of the mosque contains six mihrabs in Cairo, Egypt, on January 9, 2026.

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#13172529

9 January 2026

The mosque of Ibn Tulun is commissioned by Ahmad Ibn Tulun, 'Abbasid governor of Egypt. Construction begins in 263 AH/876 AD and finishes in 265 AH/879 AD. It is located on Jebal Yashkur (in modern-day Ahmad Ibn Tulun Square, Sayyida Zaynab). The mosque is distinguished by its spiral minaret, which echoes the designs of the al-Abbas mosque in Samarra, Iraq. The arches and the windows of the mosque's courtyard contain stucco designs of geometric and floral patterns. A water fountain is positioned in the center of the courtyard, surmounted by a dome supported on marble columns. The interior of the mosque contains six mihrabs in Cairo, Egypt, on January 9, 2026.

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#13172532

9 January 2026

The mosque of Ibn Tulun is commissioned by Ahmad Ibn Tulun, 'Abbasid governor of Egypt. Construction begins in 263 AH/876 AD and finishes in 265 AH/879 AD. It is located on Jebal Yashkur (in modern-day Ahmad Ibn Tulun Square, Sayyida Zaynab). The mosque is distinguished by its spiral minaret, which echoes the designs of the al-Abbas mosque in Samarra, Iraq. The arches and the windows of the mosque's courtyard contain stucco designs of geometric and floral patterns. A water fountain is positioned in the center of the courtyard, surmounted by a dome supported on marble columns. The interior of the mosque contains six mihrabs in Cairo, Egypt, on January 9, 2026.

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