The mosaics inside St Mark's Basilica are one of its most prominent features. The walls and ceilings are covered with intricate patterns and scenes, depicting biblical stories, religious figures, and historical events. The mosaics are made up of tiny pieces of glass, called tesserae, which are arranged in intricate patterns to create a stunning effect. The most famous of these mosaics is the "Pala d'Oro".

Also, check out: Bell Tower at St. Mark's Basilica

In addition to the mosaics, St. Mark's Basilica is also adorned with beautiful frescoes. These paintings in St. Mark's Basilica are created by applying pigment onto wet plaster, resulting in a vibrant and long-lasting work of art. The frescoes in St. Mark's Basilica depict scenes from the life of Christ, as well as portraits of various saints and other religious figures.

The floors of St. Mark's Basilica are made of beautiful marble, inlaid with intricate designs and patterns. The marble is sourced from various regions of Italy and is arranged in a way that creates a stunning visual effect. The floors are particularly impressive in their complexity and attention to detail.

At the heart of St. Mark's Basilica is the high altar, which is adorned with various precious stones and metals. The St. Mark's Basilica altar is flanked by two columns, which are believed to have been taken from the Temple of Solomon in Jerusalem. The high altar is the focal point of the church and is an impressive work of art in its own right.

Also, check out highlights of St. Mark's Basilica

One of the most recognizable features of St. Mark's Basilica is the four bronze horses that stand atop its facade. These horses in St. Mark's Basilica are believed to be over 2,000 years old and were originally brought to Venice from Constantinople in the 13th century. The horses have been restored numerous times over the centuries and are now housed inside the basilica to protect them from the elements.

The pulpit in St. Mark's Basilica is a masterpiece of Gothic sculpture. It was created by the sculptor Niccolò di Pietro in the 14th century and depicts scenes from the life of Christ. The pulpit is made of marble and is supported by intricate columns and arches.

The choir stalls in St. Mark's Basilica are made of carved wood and are decorated with intricate designs and scenes from the Bible. The choir stalls are located in the apse of the church and are used by the choir during religious services.

The treasury in St. Mark's Basilica houses a collection of religious relics and precious objects, including gold and silver chalices, crosses, and other religious artifacts. The treasury is located behind the high altar and is open to visitors for viewing.

The narthex is the entrance hall to St. Mark's Basilica, located at the west end of the building. The narthex contains beautiful mosaics and sculptures, as well as a museum that showcases St. Mark's Basilica's history and art.