I've been a tour guide in Rome for 16 years. Here are 5 tourist attractions that are worth it and 5 you can skip.

Located on Capitoline Hill, the Capitoline Museums offer a treasure trove of ancient Roman art and artifacts.

Despite their historical significance as some of the oldest public museums in the world, they're often overlooked by tourists.

The well-curated collections include masterpieces by renowned artists like Michelangelo and Caravaggio, ancient bronzes, and frescoes. It's a must-visit for any art enthusiast seeking a quieter, more intimate experience.

As one of Rome's four major basilicas, San Giovanni in Laterano (also known as the Archbasilica of St. John Lateran) boasts a stunning display of baroque architecture and intricate frescoes.

It may not be as famous as some of Rome's other churches, but its grandeur and historical importance as the oldest papal basilica in the city make it a hidden gem worth exploring.

Escape the crowds and stagnant air of the city center and venture into a tranquil Park of the Aqueducts (Parco degli Acquedotti).

Here, you'll see towering arches of 11 aqueducts that once carried water to the heart of ancient Rome. It's a perfect spot for a leisurely stroll on the ancient Latin Road or a picnic away from the crowds.

The attraction also offers a unique perspective on the ingenuity of Roman engineering.

Art lovers shouldn't miss the exquisite "Madonna dei Pellegrini" housed within the Cavalletti Chapel at Basilica di Sant'Agostino in Campo Marzio.

The dramatic interplay of light and shadow in Caravaggio's painting comes alive in the serene church, providing a captivating glimpse into the artist's unparalleled talent and revolutionary style.

Step back in time and explore the remarkably well-preserved ruins of Ostia Antica, Rome's ancient seaport.

The archaeological site offers a quieter and less time-consuming alternative to the crowds of Pompeii a little farther south. Visitors can wander through ancient streets, houses, and Roman theaters in a more peaceful setting than the Roman Forum.

Plus, you can enjoy a seafood lunch overlooking the Tyrrhenian Sea after your visit.

Although the Vatican Museums are undeniably home to some of the world's most renowned art collections, they're almost always swarming with tourists.

The crowds and long queues can detract from your overall experience. In peak season, the Vatican easily sees 20,000 to 30,000 visitors a day.

It's virtually impossible to admire the art as you're shuttled through each gallery until everyone spills into the Sistine Chapel. Even the bathroom lines can be a 30-minute wait.

Unless you are willing to spend a lot of money on an official tour before the museums are open to the public or visit in the offseason, you should consider alternative attractions.

As iconic as it may be, the Colosseum can be overwhelming, particularly during peak tourist seasons.

Its historical significance is undeniable, but exploring the ancient amphitheater can be a challenge among the swarms of visitors.

Acquiring tickets is also tricky. We often have to time our online purchases perfectly, refreshing the page in 10-minute intervals. Tickets sell out quickly and are sometimes resold by large companies.

Consider alternative viewpoints or guided tours for a more personalized experience. I also like taking in the exterior around 9 a.m. or in the evening when it lights up.

The Appian Way is significant in Roman history as the oldest and most important road. But its appeal may be lost on the average tourist.

Nowadays, there are loads of bike and bus tours to the Catacombs along the road — making it crowded — and public transport there is difficult.

I suggest visiting the Park of the Aqueducts instead. It's an easy metro ride from Termini Station and offers a glimpse into what the Roman countryside would've been like.

Although undeniably one of Rome's most famous landmarks, the Trevi Fountain is often teeming with tourists jostling for the perfect selfie.

The sheer volume of visitors can detract from the fountain's beauty and significance, making it challenging to appreciate it in peace.

If you insist on throwing a coin in, go as early in the morning as possible — otherwise, it's a zoo.

Made famous by its appearance in classic films like "Roman Holiday," the Mouth of Truth may not live up to the hype for many visitors.

According to medieval legend, the stone mask will bite off the hand of any liar who enters its mouth, which has made it popular with tourists.

But the brief photo opportunity doesn't justify the long queues. Plus, it was probably just used as a drain cover in the Temple of Hercules.