Elvas is a city located in the Alentejo region of southern Portugal, close to the Spanish border. The city has a long and rich history dating back to pre-Roman times, and is known for its impressive fortifications, which have been designated a UNESCO World Heritage Site.

Elvas was an important military stronghold during the Portuguese Restoration War of the 17th century, and played a key role in securing Portugal's independence from Spain. The city's walls and fortifications were expanded during this period, and were designed to withstand attacks from both land and air.

Today, Elvas is a popular tourist destination, known for its historic architecture and cultural heritage. The city's impressive fortifications are a major draw for visitors, with the walls stretching for over five kilometers and featuring numerous bastions and watchtowers. Visitors can explore the walls and fortifications on foot, enjoying panoramic views of the surrounding countryside and the city itself.

Elvas is also home to several historic churches and monuments, including the Santa Maria da Graca Church and the Amoreira Aqueduct, which was built in the 16th century to supply the city with water. The city's historic center is filled with narrow streets and traditional Portuguese architecture, with colorful houses and tiled facades.

Elvas is also known for its cuisine, which features traditional Alentejo dishes such as migas (a bread-based dish), açorda (a soup made with bread and garlic), and sericaia (a type of pudding).