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

Hidden in a secluded Greek cove is a pristine beach marred only by the rusting smuggler's hulk stranded on its shores.

Now a memorial to merchant sailors and Titanic victims, this medieval church was destroyed by bombing raids in 1940.

A mysterious pair of mice eating a piece of cheese is London's smallest public sculpture.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

This South London cemetery holds the remains of more than 15,000 people.

Unusual British home built to disguise a water tower.

Surreal riveted sea forts once protected the Kent shores from German attack.

A 550-square-meter micro-nation off the coast of Britain.

The Metropolitan Police refurbished the blue box (perhaps not coincidentally) the same year "Doctor Who" returned to TV screens.

Repository for more than 22 million pickled specimens.

The television series' iconic giant foot was borrowed from this classical painting.

The commemorative stone column conceals a secret laboratory.