Now home to a drinking establishment, this building has a macabre history.

This Scottish graveyard is the final resting place of the man who inspired the character Ebenezer Scrooge.

A quartet of brightly colored mythical beasts stand sentry at this gateway.

Edinburgh's oldest statue hides within a parking lot behind the city's iconic cathedral.

A labyrinthine network of chambers with a storied past hides below Edinburgh's South Bridge.

This otherwise ordinary close on the Royal Mile constituted the end of the world for Edinburgh’s poorest residents.

This obscure walkway links Edinburgh’s Old Town with one of the city's prime vantage points.

This charming old building's loose connection with the Scottish Reformer is what saved it from demolition after it split apart.

The colorful stairs are made with marble from the world's major quarries.

A 18th century graveyard and its astonishing cortege of macabre iconography.

One of the oldest scientific gardens in Britain, containing more than 13,302 plant species in its core collection.

2300-year-old Roman road connecting the empire.

A modern sliver of architecture in Roma.

A fairy tale castle in modern Rome.

A mysterious chasm in the heart of the ancient Roman Forum, the Lacus Curtius was once believed to be a gateway to hell.

The ruins of the largest gladiatorial school in Rome are largely hidden under modern streets.

An alchemist's "magic door" stands in the middle of a Roman park.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

Two stone columns flank the grand Venice square, but there were supposed to be three.

Those who own or stay at this 500-year-old, allegedly cursed house often meet terrible fates.

This palatial spiral staircase was so unusual the name "snail" was given to the noble family who built it.

According to tradition this is the oldest church in Venice, but its actual age is a mystery.

A new sculpture calls attention to climate change in the centuries-old city it threatens.

In the past, Renaissance sex workers were encouraged to entice customers on this bridge.