Visit to St. Isaac's cathedral

St. Isaac's Cathedral is the largest cathedral in the city. It is also one of the biggest one-dome cathedrals in the world after St. Peter in Rome and St. Paul in London . It was designed by the French architect A. Montferrand. It took 40 years to construct it. The cathedral is filled with mosaics, painted ceiling murals, bronze gilt statues. The cathedral is surrounded by 112 monolith granite columns, which were transported from one of the suburbs of the city. St. Isaac's Cathedral was the main cathedral of the city from the 19 th century. Now the cathedral houses the museum, but on Greatest Orthodox holidays Religious services are held here.