Final answer:
The Ishtar Gate was intricately constructed around 575 B.C.E. using glazed brick during the neo-Babylonian period under King Nebuchadnezzar II, and it's now exhibited in the Pergamon Museum, Berlin.
Step-by-step explanation:
The Ishtar Gate, constructed around 575 B.C.E. under King Nebuchadnezzar II, is a prominent architectural work from the neo-Babylonian period. The gate was a part of a larger revival of Babylonian culture which included grand projects such as the Hanging Gardens and the Ziggurat Temple of Bel, reminiscent of the biblical Tower of Babel. Featuring glazed brick laden with lapis lazuli, the Ishtar Gate stood as a testament to Babylonian architecture and artistic achievement. Notably, the reconstruction of this structure can now be seen at the Pergamon Museum in Berlin, Germany, showcasing the vibrant blue facçade adorned with reliefs of lions, cattle, and dragons that symbolized various deities revered by the Babylonian people.