The most famous king of Babylon was Nebuchadnezzar II. He made the city into one of the wonders of the ancient world. Nebuchadnezzar II achieved this through his amazing construction projest. For example, to improve the entrance of the city, he built the beautiful Ishtar Gates. These huge gates stood at the start of Processional Way, a wide street with statues of animals that led into the city. The Ishtar Gates honoured the goddess Ishtar and had her symbol, the lion, on them. He also built various grand temples and made the imperial palace more luxurious. One of these grand temples was a pyramid-shaped temple that stood 00 metres high in the palace gardens and was the tallest building in Babylon. Many ancient writers called it the 'Tower of Babel' and it was another architectural wonder of the city. The king also built another amazing place in Babylon. According to ancient writings, he constructed the Hanging Gardens of Babylon to honour his wife. Archaeologists have yet to find evidence of the existence of these mythical gardens that hung from a terraced building.