Laodicea was an ancient city located in the Lycus River Valley in what is now the western part of Turkey. It was founded in the 3rd century BC and was known for its wealth and prosperity, particularly due to its location on important trade routes. The city was also known for its production of wool, black dye, and a popular eye salve. 

Laodicea was one of the Seven Churches of Asia mentioned in the New Testament in the Book of Revelation, and it was an important center of Christianity in ancient times. The city was destroyed by an earthquake in the 60s AD and later rebuilt, but it was eventually abandoned in the 7th century AD. Today, the ruins of Laodicea are a popular tourist destination and a valuable source of information for historians and archaeologists.