Sure! Here is a 3-day itinerary for Soria:

Day 1: 9:00 AM - Start your day by visiting the San Juan de Rabanera Church, a Romanesque-style church that dates back to the 12th century. Admire its intricate architecture and beautiful stained glass windows. (Duration: 1 hour) Address: Calle Caballeros, 4, 42002 Soria 10:30 AM - Head to the Numantino Museum, which showcases the history of the ancient Celtiberian city of Numantia. Explore the exhibits and learn about the culture and daily life of the Celtiberian people. (Duration: 2 hours) Address: Cuesta del Castillo, s/n, 42002 Soria 1:00 PM - Enjoy a traditional Spanish lunch at Restaurante Amador, known for its delicious regional cuisine. Try the local specialty, Torrezno, a crispy pork belly dish. (Duration: 1.5 hours) Address: Calle Tejera, 2, 42002 Soria 2:30 PM - Visit the Soria Museum, located in the historical San Agustín Convent. The museum displays a vast collection of archaeological artifacts, paintings, and sculptures that depict the history of Soria. (Duration: 2 hours) Address: Plaza Bernardo Robles, 2, 42002 Soria 4:30 PM - Take a leisurely stroll along the Duero River Promenade and enjoy the scenic views. Admire the Puente de Piedra (Stone Bridge), a picturesque bridge that spans the river. (Duration: 1 hour) 6:00 PM - End the day by exploring the Ruins of San Nicolás, the remains of a 14th-century Gothic church. Experience the serenity of this historical site surrounded by nature. (Duration: 1 hour) Address: Camino de la Dehesa, s/n, 42004 Soria Google Maps Link: https://www.google.com/maps/dir/Calle+Caballeros,+4+Soria/Cuesta+del+Castillo,+s/n+Soria/Calle+Tejera,+2+Soria/Plaza+Bernardo+Robles,+2+Soria/Duero+River+Promenade+Soria/Camino+de+la+Dehesa,+s/n+Soria

Day 2: 9:30 AM - Begin your day at the Santo Domingo Church, an imposing Gothic-style church with an intricate facade. Explore its interior and admire the impressive altarpiece. (Duration: 1.5 hours) Address: Plaza Santo Domingo, 11, 42001 Soria 11:00 AM - Head to the Ruins of Numancia, an archaeological site that preserves the remains of the ancient Celtiberian city of Numantia. Take a guided tour to learn about its history and significance. (Duration: 3 hours) Address: Carretera de Garray a Burgo de Osma, s/n, 42005 Garray 2:30 PM - Enjoy a traditional Castilian lunch at Asador El Cid, known for its grilled meats and local specialties. Indulge in some roast lamb or suckling pig. (Duration: 2 hours) Address: Carretera de Valladolid, 10, 42004 Soria 4:30 PM - Visit the San Juan de Duero Monastery, a stunning Romanesque complex that includes a church, cloister, and medieval tombs. Explore the tranquil surroundings and admire the architectural details. (Duration: 1.5 hours) Address: Calle San Juan de Rabanera, 25, 42002 Soria 6:00 PM - Discover the hidden gem of Soria, the Rincón de Bécquer. This picturesque alleyway pays tribute to the famous Romantic poet Gustavo Adolfo Bécquer, with quotes from his works adorning the walls. (Duration: 1 hour) Address: Calle Caballeros, 20, 42002 Soria Google Maps Link: https://www.google.com/maps/dir/Plaza+Santo+Domingo,+11+Soria/Carretera+de+Garray+a+Burgo+de+Osma,+s/n+Soria/Carretera+de+Valladolid,+10+Soria/Calle+San+Juan+de+Rabanera,+25+Soria/Calle+Caballeros,+20+Soria

Day 3: 10:00 AM - Start your day by exploring the La Dehesa Nature Reserve, a vast natural area with beautiful landscapes and hiking trails. Take a leisurely walk and enjoy the serene surroundings. (Duration: 3 hours) Address: Ctra. de Tardajos a Bocigas, s/n, 42110 Navaleno 1:30 PM - Enjoy a delicious lunch at Restaurant Los Templarios, offering a variety of dishes made with local ingredients. Try the trout, a specialty of the region. (Duration: 1.5 hours) Address: Calle Mayor, 23, 42171 La Fregeneda 3:00 PM - Visit the Romanesque church of San Miguel in La Fregeneda. Admire its well-preserved architecture and beautiful frescoes. (Duration: 1 hour) Address: Plaza de San Miguel, 3, 42171 La Fregeneda 4:30 PM - Take a relaxing boat ride along the Douro River, surrounded by stunning landscapes. Enjoy the tranquility and spot local wildlife. (Duration: 2 hours) Address: Muelle de Vega Terrón, 37210 Vega de Terrón Google Maps Link: https://www.google.com/maps/dir/Ctra.+de+Tardajos+a+Bocigas,+s/n+Navaleno/Calle+Mayor,+23+La+Fregeneda/Plaza+de+San+Miguel,+3+La+Fregeneda/Muelle+de+Vega+Terrón,+37210+Vega+de+Terrón Please note that the addresses provided are for reference and may not be exact. It is always recommended to verify the locations before visiting. Enjoy your trip to Soria!