This communist behemoth is the heaviest building in the world and a legacy of a brutal regime.

Soon after its unveiling, this giant inverted globe sparked controversy and was vandalized.

A jumble of concrete on the corner of one of London’s terraced buildings is actually a work of art.

At the top of the hour, figures of the London department store's two co-founders emerge and bow to each other.

This luxury shopping lane has been protected by its own tiny police force for over a century.

A collection of machines designed to break things for science.

This sculpture marks the spot where one of the greatest Roman rulers was proclaimed emperor.

A Reformation-era fiery figurehead once denoted this location as a print shop.

This memorial to World War II's fallen airmen shows us the movements of the stars that once guided them.

Semaphore saints, a golden dragon's head, and a stone carved with religious warnings all call this cathedral home.

One of the shortest streets in York has an especially odd name.

A six-ton wedding present for the King of the Scots.

The final resting place of soldiers' loyal canine companions.

Overlooked by many, the two famous Scottish warriors guard the main gate of Edinburgh Castle.

Remnants of the 16th-century defensive wall still stand unassumingly within Edinburgh.

Protecting the dead from opportunistic body snatchers.

Near the former site of numerous witch burnings, this lavish Edinburgh mainstay pays homage to Scotland's brutal history.

This small museum in a 17th-century building honors three iconic Scottish writers.

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

Brass bricks outline the locations of Edinburgh's lost, lively market stalls.

This 17th-century street hidden beneath Edinburgh was once a breeding ground for the black death.

The library houses an incredible collection of some of the world's most impressive books and manuscripts.

Originally built for London’s cab drivers, this bright green hut now serves anyone a hot drink or meal.

The eyes and ears of this tower keep watch over Malta’s Grand Harbor.