1. Saint Isaac's Cathedral, Golden Dome Cathedral Address - St. Petersburg, Russia Highlight - Located in the middle of St. Petersburg. It is characterized by the golden dome roof that is covered with real gold. More than 100 kilograms, the exterior is decorated with marble and magnificent red granite walls. The interior of the temple is decorated with countless exquisite paintings from the ceiling to the walls, on the balcony of the temple on the top floor. It is also another viewpoint of St. Petersburg in Ngong Nga. The best as well Anyone who has plans to visit here, don't miss it. Score - 10/10