Quinta da Regaleira(The Palace of Monteiro the Millionaire)

Located near the historic center of Sintra in Portugal, the Regaleira Estate is a UNESCO World Heritage Site as part of the Sintra Cultural Landscape and is one of Sintra's main tourist attractions. The Regaleira estate includes the romantic Regaleira Palace, the Regaleira Chapel, and a sumptuous park with lakes, caves, wells, benches, fountains and a wide variety of exquisite buildings. The estate is also known as the "Millionaire Monteiro's Palace," after the nickname of the first owner. There is a small curved city wall in the middle of the manor. There are many sacred objects carved on the city wall. When you walk into the city wall, you will see a dry well with a depth of 27 meters when you pass through a cave that is more than ten meters long. The exit at the end of the cave is just right. In the middle of the well, a spiral staircase surrounds the well, with 9 spiral layers, symbolizing the 9 cycles of heaven, hell and purgatory described by Dante. Along the spiral staircase, you can walk from the bottom of the well to the wellhead. Outside the wellhead is a garden, a world of flowers.