Hattusa is an ancient city in Turkey, located near the modern-day village of Boğazkale in the central Anatolian region. It was the capital of the Hittite Empire during the Late Bronze Age, from the 17th to the 12th century BCE.

The city was rediscovered in the late 19th century and excavated by German archaeologist Hugo Winckler in the early 20th century. Hattusa is known for its impressive defensive walls, temples, palaces, and sculptures. Some of the notable features of the city include:

The Great Temple: This temple was dedicated to the Hittite gods and is one of the largest structures in Hattusa. It features massive stone pillars, sculptures, and reliefs.
The Royal Palace: This complex was the residence of the Hittite kings and their families. It consists of several courtyards, halls, and chambers, including the Audience Hall and the Queen's Quarters.
The Sphinx Gate: This is the main entrance to the city and is guarded by two large sphinxes. It leads to the main street, which is lined with shops and houses.
The Yazılıkaya Sanctuary: This open-air temple complex features rock-cut reliefs of Hittite gods and goddesses, as well as scenes of religious ceremonies and processions.
Hattusa was abandoned in the 12th century BCE, possibly due to a combination of factors such as invasion, natural disasters, and internal conflicts. Today, it is a UNESCO World Heritage site and a popular tourist destination in Turkey.