A massive fire burned parts of the Notre Dame Cathedral on Monday, April 15, 2019, toppling its spire as Parisians watched in shock in the streets.

Notre Dame cathedral in Paris, France, is shown in this 1987 photo. (AP Photo/Lionel Cironneau)

Here are some facts and figures about the treasured building.

Name: Notre Dame de Paris, which means Our Lady of Paris.

Construction: The building stands on the Île de la Cité, a small island in Paris’ Seine River. Construction was begun in 1163, and its two massive towers were finished around 1245, but the building was not completed until the beginning of the 14th century. Its central spire was added in the 19th century.

The Cathedral of Notre Dame, Our Lady, on the island called Île de la Cité in Paris, France, is shown in 1911. (AP Photo)

Measurements And Design: The interior of the cathedral is 427 feet by 157 feet (130 meters by 48 meters). The main structure is 211 feet high (64 meters high). The three famed rose windows date to the 13th century.

Accompanied by hundreds of bishops adorned in rainbow stripes, Pope John Paul II, center, attends a first beatification mass ever held in Paris Notre Dame cathedral Friday Aug. 22, 1997. The 77-year-old pontiff, in French capital for a four-day rendezvous with hundreds of thousands of youths from around the world, celebrated the beatification mass for Frederic Ozanam, a 19th-century French layman who founded the St Vincent de Paul charity. Beatification is one step before sainthood. (AP Photo/Domenico Stinellis)

French Revolution: In the wake of the French Revolution, the cathedral was declared a “Temple of Reason” as part of an anticlerical movement. All of the original bells were destroyed, except for one, called Emmanuel and weighing 13 tons.

Restoration: In 2013, the cathedral celebrated its 850 years with a refurbished organ. Each of the nearly 8,000 pipes, some of which date back to the 18th century, was individually cleaned and returned to its place. Meanwhile, nine new, gargantuan bells replaced the 19th century ones.

Visitors: An average of 30,000 people a day visit the cathedral.

This is a nighttime view of the Cathedral of Notre Dame, Our Lady, on the island called Île de la Cité in Paris, France, in 1933. (AP Photo)

The scene of Golgotha during the Passion Play in Notre Dame, Paris, France on June 4, 1936. (AP Photo)

Precautionary measures have been taken to protect the statues and sculptured stones of Notre Dame Cathedral in Paris against aerial bombardments on Sept. 12, 1939. Sandbags piled up as a protection against some of the carved stonework. (AP Photo)

United States soldiers are shown being joyfully greeted by French women in the shadow of Notre Dame Cathedral in Paris, August 28, 1944. They dance and one girl seems to be pulling a soldier from the truck. (AP Photo)

U.S. soldiers fill the pews of Notre Dame Cathedral, Paris, France, April 16, 1945, during the GI memorial service for U.S. President Roosevelt. (AP Photo/Morse)

The Cathedral of Notre Dame is seen from the Seine River in Paris, France on April 11, 1946. On the right is the St. Michel bridge. (AP Photo)

Spring blossoms are pictured near the bell towers of Paris' famed Cathedral of Notre Dame, April 11, 1946. (AP Photo/Jean-Jacques Levy)

The Cathedral of Notre Dame is pictured in Paris, May 12, 1946, from the Place du Parvis when famous Parisian buildings were brightly illuminated to celebrate Victory Night. (AP Photo/Max Nash)

A view from across the Seine River looking at the back of the snow-covered Cathedral of Notre Dame in Paris, Jan. 31, 1947. This was the first heavy snow of the season. (AP Photo/Max Nash)

A mosaic reproduction of the Mexican-celebrated Virgen de Guadalupe wears a crown at the Cathedral of Notre Dame in Paris, April 26, 1949, after a coronation ceremony performed by Cardinal Emmanuel Celestin Suhard, archbishop of Paris. (AP Photo/Jean-Jacques Levy)

President Dwight Eisenhower runs his hand over the surface of one of the stained glass windows in the Cathedral of Notre Dame, May 18, 1960 as he toured churches in the French capital. (AP Photo)

On the occasion of the 800th anniversary of Notre Dame cathedral in Paris, an exhibition of religious art opened at the Sainte Chapollo (Holy Chapel), Notre Dame, June 20, 1963. Among the works exhibited is this 13th century marble statue Notre Dame la Blanche that stood in Notre Dame cathedral until the Revolution and is now at Magny-en-Vexin. (AP Photo/Jean-Jacques Levy)

The front elevation of Notre Dame cathedral in Paris, on April 18, 1967. (AP Photo)

Huge drapes cover most of Notre Dame cathedral in Paris as it is whitewashed to restore it to its original spotlessness, on Oct. 26, 1968. (AP Photo/Maurent)

The funeral of former French President Charles De Gaulle at Notre-Dame Cathedral, Paris, France, on Nov. 12, 1970, was attended by many heads of state and members of European Royal families. President of the United States, Richard Nixon, sits right before the start of the service. (AP Photo)

People watch as Philippe Petit, a 21-year-old professional tightrope walker, appears as the tiny figure sitting on a tightrope, strung 225 feet above the ground, between the two towers of the Notre Dame Cathedral, Paris, France on June 26, 1971, during a stunt which lasted several hours, with police unable to bring him down. (AP Photo/Cardenas)

A general view of the memorial service in Notre Dame de Paris Cathedral, in Paris, France, for the late French President Georges Pompidou on April 6, 1974, who had been buried in a simple ceremony on the outskirts of the city. Republican guards line the aisle during the service. (AP Photo)

Young tourists, after tiresome sightseeing of Paris, August 15, 1974, had a night's sleep on the lawns in front of Notre Dame, cuddled in their sleeping bags. (AP Photo/Michel Lipchitz)

Pope John Paul II attends the celebration of a first beatification mass ever held in Paris’ Notre Dame Cathedral, Friday, Aug. 22, 1997. The 77-year-old pontiff, in the French capital for a four-day rendezvous with hundreds of thousands of youths from around the world, celebrated the beatification mass for Frederic Ozanam, a 19th-century French layman who founded the St Vincent de Paul charity. Beatification is one step before sainthood. (AP Photo/Domenico Stinellis)

The two towers of Notre Dame Cathedral in Paris are pictured from the spire, June 13, 1998. Notre-Dame was started in 1163 and still isn't finished. But that's not unusual with Gothic cathedrals, often having either been destroyed by war and then refurbished, or renovated just to eliminate the flaws. (AP Photo/Remy de la Mauviniere)

A general view of Notre-Dame de Paris Cathedral with its new lighting design, shortly after it was inaugurated by Paris mayor Bertrand Delanoe in Paris, Tuesday, Dec. 12, 2006. (AP Photo/Remy de la Mauviniere)

Pope Benedict XVI delivers a message from the front of the Notre-Dame cathedral in Paris, Friday, Sept. 12, 2008, following a vespers service. (AP Photo/Alessandra Tarantino)

Text from the AP news story, Some facts and figures about Notre Dame Cathedral.

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