What place is known as the gateway to paradise?

The Taj Mahal is a white marble mausoleum located in the city of Agra, India. It was built by the Mughal emperor Shah Jahan in memory of his wife, Mumtaz Mahal. The Taj Mahal is considered one of the most beautiful buildings in the world and is a UNESCO World Heritage Site. It is often referred to as the "gateway to paradise" because of its stunning beauty and its association with eternal love.