Ephesus was an ancient Greek city on the coast of Ionia, near present-day Selçuk in Turkey. It was one of the most significant cities of the Roman Empire and played a crucial role in the ancient world. Here are some key aspects of Ephesus:

1. History: Ephesus was founded in the 10th century BCE by the Ionian Greeks. It later became part of the Roman Republic and, subsequently, the Roman Empire. The city was known for its strategic location, wealth, and cultural significance.
2. Celsus Library: The Library of Celsus is one of the most famous structures in Ephesus. Built in the 2nd century CE, it housed over 12,000 scrolls and was one of the largest libraries of the ancient world. The façade, with its statues and reliefs, has been partially reconstructed.
3. Theater of Ephesus: The Great Theatre of Ephesus is one of the largest and best-preserved ancient theaters. It could accommodate around 25,000 spectators and was used for various performances and events.
4. Temple of Artemis: The Temple of Artemis, also known as the Artemision, was one of the Seven Wonders of the Ancient World. Although only a few columns remain today, it was once a massive and grand structure dedicated to the goddess Artemis.
5. House of the Virgin Mary: Located near Ephesus, the House of the Virgin Mary is believed by some to be the final residence of Mary, the mother of Jesus. It is a place of pilgrimage for Christians.
6. Agora of Ephesus: The Agora, or marketplace, was the commercial and civic center of Ephesus. It included various buildings, such as the Bouleuterion (Council House) and the Odeon.
7. Temple of Hadrian: This well-preserved Roman temple was dedicated to Emperor Hadrian and is known for its intricate relief work. The façade features depictions of Medusa and other mythological figures.
8. Terrace Houses: The Terrace Houses of Ephesus, also known as the “Houses of the Rich,” are a complex of well-preserved residential structures with intricate mosaics, frescoes, and plumbing systems. They provide insight into the daily lives of the city’s wealthier residents.
9. Ephesus Archaeological Museum: Located in Selçuk, the museum houses artifacts and statues recovered from the excavations at Ephesus. It provides additional context and background information about the city’s history.
10. Street of Curetes: This well-preserved ancient street in Ephesus was lined with columns and featured various shops, houses, and public buildings. It was a bustling thoroughfare in its heyday.

Ephesus was a thriving cultural and commercial center, known for its impressive architecture, advanced engineering, and as a major port city. Today, the archaeological site of Ephesus is a UNESCO World Heritage Site and a popular destination for tourists and history enthusiasts.