From Madrid: Full-Day Segovia & Avila

Explore two historic cities of Spain with this fantastic bus tour to Segovia and Avila of the Castille y Leon. Journey to Segovia by comfortable bus and get dropped off at the impressive aqueduct on arrival. Admire one of the best remaining examples of Roman engineering, built over 2,000 years ago to transport water to the city. Go to the visitor center to see a model of Segovia and watch a presentation which can help you decide which monuments you want to visit.
Declared a UNESCO World Heritage Site in 1985, the buildings of the "Old Town of Segovia and its Aqueduct" include Romanesque churches and the unusual fortress of the Alcázar. Stroll down the streets of the Jewish Quarter, where a number of the city's landmarks can be spotted. 

After Segovia, continue your journey to Avila. Located approximately 70 miles (110 kilometres) northwest of the Spanish capital, Avila is completely encircled by 11th-century walls. Upon arrival, you will learn about Santa Teresa de Jesus, a great mystic woman of the Roman Catholic Church and you will also see some of the city. Avila has the most ancient and completely fortified complex in Spain. Its 8,200-foot-long wall (about 2,500 meters) and 90 fortified towers surround the old city, which houses a great part of its monumental treasures, including a large number of Romanesque-style churches, Gothic palaces and a fortified cathedral from the 12th-century. Experience the spirituality that led Santa Teresa to found a small convent of Carmelites, where the mystic San Juan de la Cruz conducted his first mass.