This is one of the most beautiful churches I have ever seen, and I'm an interior designer and have taken many art classes that show pictures of great churches. This was amazing. And we had the delight of having a musical presentation the night we went. Worth every penny!

There are a handful of charming Baroque churches scattered around Innere Stadt including Peterskirche (St. Peter's Church) just off Grabenstraße. The church history dates back to the Middle Ages but the building you see today is from the early 18th-century and is fashioned after the Vatican's St. Peter's Basilica but at a significantly smaller scale. The curved facade with towers is impressive, as is its bronze dome. Within you find a round nave, again similar to Baroque era churches you might have seen in Rome. The interior features delightful altars, ornate marble walls and inner cupola fresco that is worth spending some time to view and enjoy. Take a seat and just enjoy the beauty within Peterskirche before continuing onward with other intended sightseeing in this area of Vienna.

It is believed that a church has existed on this site since the early middle ages though the current Baroque church building was begun around 1701 and consecrated to the Holy Trinity in 1733. At that time it was the fist domed structure in Vienna. The exterior of the church, which is two storeys high, is coloured white with pale yellow pilasters, entablatures and architraves, the latter which we see around the niches and the windows. There is a portico over the church's main entrance that is topped with a very ornate grey marble monument with three lead statues holding gilded ornaments and implements. These statues represent faith, hope and love. Either side of the main facade are two towers that are three storeys high and have, on each of the first and second storeys, semi-circular niches that hold stone statues (four in total). There is a window on the third storey of each of the towers as well as on the second storey of the main facade of the building. This latter window has a clock above it. The dome is approximately 5 metres high and is topped with a lantern that allows light into the interior of the cupola. The interior single nave has a spectacular array of marble, richly decorated golden stucco, gilded woodwork (particularly the ornate pulpit), beautiful frescoes, particularly inside the cupola and the side chapels, as well as lovely paintings. The fresco of the Coronation of Our Lady inside the cupola is the work of Johann Michael Rottmayr. The high altar is quite lovely and, on the ceiling above it, is a fresco that gives the illusion that there is a second smaller cupola. The altarpiece displays the Healing of the Lame by St. Peter and St. Jon in Jerusalem. There are several beautifully ornate side chapels. On a balcony above the main entrance is a large Baroque organ that was built in 1751. Well worth a visit particularly as it is free to enter - take note Karlskirche.

St Peter's Church was our introduction to the beautiful churches of Vienna. Walking through the Graben, we noticed this green-domed church sitting down a side street. This current church building in the Baroque style was constructed in the early 1700s. Both Austrian and Italian artists were commissioned to adorn the church's interior. Beautiful ceiling frescos. Stunning altarpieces and sculptures gilded in gold and silver.

This Roman Catholic church nestles quietly in the center of Petersplatz square. The building may look familiar as it is modeled on St Peter's Basilica in Rome. The original records about the church date back to 1137. It has a magnificent Baroque interior and is free to visit.