The cathedral does have a baptistry attached, as was tradition by the time it was completed. There are likely also s-curved figures in the space, as that was the figural building tradition of the time. Bell towers were not featured as much in Gothic architecture, although a spire could have a bell within it. As Gothic cathedrals grew more ornate, square bell towers became spindly and graceful spires, built as high as they could reach. This cathedral, though, does not feature this element. 

While all of the above choices are aspects of Gothic architecture, flying buttresses are the innovation that allowed for newfound structural stability in Gothic cathedral architecture by pushing the weight of the building outward. Cathedral walls did not have to be as large or as thick any longer, allowing for larger windows (often filled with stained glass). These windows helped to create brighter interiors in comparison to the dim and damp interiors of pre-Gothic cathedrals.

Gothic architecture is known for being much more vertically-oriented than its predecessor, the Romanesque architecture movement. It is also known for its pointed arches and expansive interior lighting.

Gothic architecture experienced a revival in England, which spread to Europe, and even reached the United States at one point. It has mostly been used for academic institutions and churches/cathedrals.

Neoclassicism is a revival of Ancient Greek and Ancient Roman art and architecture, but Neoclassicism itself never experience a revival, as it has remained somewhat popular through the 21st century.

Although the Gothic period and the Renaissance coincided -meaning, at one point in time, they were occurring simultaneously- Gothic architecture was not inspired by the Renaissance during the 12th and 13th centuries, as the Renaissance did not begin until the 14th century.

Cathedrals, and many churches, built in Western Europe during the Middle Ages were usually set out in a cruciform, or cross shape. Chartres Cathedral, while featuring a wider transcept, or shorter branching of the cross, follows this pattern as well. Chartres Cathedral differed from other Gothic cathedrals in having a more uniform height for its arcade, triforium, and clerestory levels, the arches on the interior's walls.

The Gothic style emerged from France, was the longest lasting European architectural movement, and is associated with the rise of the Great cities in Europe. Romanesque and Byzantine architecture are rooted in other regions and were highly religious for the duration of their dominance. The International Style was a very brief phenomenon, and is distinguished by its unique, elongated rendering of the human figure.

Palladio lived and worked around Venice in the mid-sixteenth century, constructing a series of large villas and important buildings. Much of Palladio's work harkened back to styles prominent in Ancient rome, as he created buildings with lots of columns, large colonnades, and domes. His influential architectural textbook, The Four Books of Architecture, helped spread these ideas in the architectural movement known as neo-classicalism.

An arch is able to remain in its appropriate position because of the way that pressure is placed throughout the entire arch. Pressure can only be appropriately distributed because of the placement of the keystone. The keystone is the central stone in an arch, which is shaped in order to push the weight down through every piece of stone.

The rediscovery of concrete was the key to completing the dome atop Il Duomo. Filippo Brunelleschi found the lost recipe for concrete, a recipe that was lost in the Middle Ages; prior to the Middle Ages, concrete was used often by the Ancient Romans.