The Basilica of San Clemente is more than a simple church; it is a real museum that houses layers and layers of history. Behind the humble doors of this 12th-century church lie the remnants of the original basilica dating back to the 4th century, the remains of a 1st-century Roman villa, and breathtaking Byzantine mosaics beautifully adorning the ceiling.

Headquarters of the Roman Catholic Church and home to the Pope, the Vatican City is an ecclesiastical state and the smallest state in Europe, both in dimension and population. Though teeny tiny, the state holds 11 noteworthy museums, including the Michelangelo-decorated Sistine Chapel (perhaps the greatest gem), St Peter's Basilica, and St Peter's Square. Marvel at the Vatican's treasures with your booked-ahead tour and avoid lining up in notoriously slow-moving queues.

No visit to Baghdad is complete without exploring Al-Mutanabbi Street, the vibrant heart of the city. Visit the Qoshla Heritage Gate and the city's traditional bazaar with its narrow lanes overflowing with colourful displays of fresh produce, sweets, and handcrafted local wares. Inside the market, there are some food stalls, where you can try authentic Iraqi street food at affordable prices. Iraqi vendors are known for their warm hospitality, especially towards foreigners. Don’t be shy to accept an invitation to share a cup of sweet Iraqi chai, as it is a key part of socialising in Arab culture.

Established by the International Society of Krishna Consciousness (Iskcon), the lavish Iskcon Temple is situated eight kilometres north of the city centre. Among the five main shrines, there is an unmissable one devoted to Krishna and Radha with a plethora of elegant architecture and a meditative atmosphere.