Elevated freight railway turned wildly successful urban park.

The world’s oldest and biggest bookstore stocking only mystery, crime fiction, espionage, and thrillers.

Also known as the Square Colosseum, this building is a prime example of fascist-era rationalist architecture.

This is the oldest Roman-made bridge in the city still existing in its original state.

A detailed pachyderm supports Rome's smallest Egyptian obelisk.

A treasure trove of Renaissance-era funerary art in a Roman church built on top of Nero's grave.

Museum dedicated to literary greats of the Romantic Period is also the home in which Keats met his untimely end.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

This beautiful park on the outskirts of Rome protects the ruins of two colossal ancient aqueducts.

The final resting place of the poets Shelley and Keats.

2300-year-old Roman road connecting the empire.

The yawning maw of this pagan visage is said to bite off the hands of liars.

Rome’s legendary peephole vista is also a former Crusader stronghold.

Architectureal fantasy quarter of Rome.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

The world’s largest LED display, built over an F1 race circuit.

Whitewashed mosque contains the world's largest carpet.

Climb to the top of the world's largest seated bronze Buddha.

Teeming with illegal goods and services, this towering maze of vice is also a popular tourist accommodation.

This one has sailed five times as far as Sir Francis Drake's famous ship.

A wonderfully eclectic Victorian aquarium lies in the basement of the Horniman Museum.

Art Deco and “Wrenaissance” mash-up, this recently restored royal residence has been home to kings and comes with secret monkey passages included.

The last four extravagant street signs of London's historic banking street.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.