Saint Basil's Cathedral is an iconic church located in Moscow, Russia. Built between 1555 and 1561 under the orders of Tsar Ivan IV, also known as Ivan the Terrible, it was designed to commemorate the capture of Kazan. The cathedral is famous for its colorful, onion-shaped domes and unique architectural style, which combines elements of Byzantine and Russian design. The cathedral is situated in Red Square, a UNESCO World Heritage site, and serves as a symbol of Moscow and Russia as a whole. It is not only a functioning church but also a popular tourist attraction, drawing millions of visitors each year who come to admire its stunning exterior and rich history.