Rome is a city that is rich in history, culture, and cuisine. Here's an ideal itinerary for 4 days in Rome:

Day 1: Arrival and Exploring the City

• Start your day by visiting the Colosseum, one of the most iconic landmarks in Rome. You can take a guided tour or explore on your own.
• After the Colosseum, head to the Roman Forum and Palatine Hill, which are located nearby. These ancient ruins offer a glimpse into the city's past.
• For lunch, try some authentic Italian pizza at Pizzeria La Montecarlo, which is located near the Colosseum.
• In the afternoon, visit the Pantheon, a stunning temple that dates back to ancient Rome.
• End your day with a stroll through Piazza Navona, a beautiful square that is surrounded by restaurants and cafes.

Day 2: Vatican City and Trastevere

• Start your day early and head to Vatican City, where you can visit St. Peter's Basilica and the Vatican Museums. The Sistine Chapel is a must-see!
• For lunch, head to Trastevere, a charming neighborhood that is known for its narrow streets and delicious food. Try some traditional Roman dishes at Osteria der Belli.
• Spend the afternoon exploring Trastevere, which is home to many churches, piazzas, and artisan shops.
• In the evening, enjoy a drink at Freni e Frizioni, a popular bar that overlooks the Tiber River.

Day 3: Ancient Rome and Shopping

• Start your day by visiting the Baths of Caracalla, which are some of the best-preserved ancient Roman baths in the city.
• Next, head to the Capitoline Museums, which are located on top of Capitoline Hill. These museums house a vast collection of ancient Roman artifacts.
• For lunch, head to Campo de' Fiori, a bustling market square that is surrounded by restaurants and cafes. Try some fresh pasta at Roscioli.
• Spend the afternoon shopping on Via del Corso, one of Rome's most famous shopping streets. You'll find everything from high-end fashion to souvenirs.
• In the evening, head to the Trevi Fountain, which is beautifully lit up at night.

Day 4: Appian Way and Food Tour

• Start your day by visiting the Appian Way, an ancient road that was once used for military purposes. You can rent a bike or take a guided tour.
• Next, head to the Catacombs of San Callisto, which are located nearby. These underground tombs offer a fascinating glimpse into early Christianity in Rome.
• For lunch, take a food tour of Testaccio, a neighborhood that is known for its delicious street food. You'll try everything from supplì to gelato.
• Spend the afternoon exploring the Jewish Ghetto, a historic neighborhood that is home to many synagogues and kosher restaurants.
• In the evening, enjoy a traditional Roman dinner at Da Enzo al 29, a cozy trattoria that serves homemade pasta and other local specialties.

I hope this itinerary helps you plan your trip to Rome!