This legendary stone is of unknown origin, and throughout history has been a literal touchstone for British leaders.

Giant, friendly pelicans in Central London, the most unlikely of places.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

An artistic tribute to the famous singer, just around the corner from where he was born.

Scattered throughout London are ancient remnants of the city's former bounding wall.

A makeshift shrine to the late rock star is still kept up on the nondescript façade outside 1 Logan Place.

Hear the quietest sound from across the dome.

Eighty million natural history specimens call this gargantuan museum home.

One part local history, 99 parts gruesome haunted house.

An unusual round church in London with a Templar past.

Banksy gives themself artistic license with this piece of London street art.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

This structure atop a craggy cliff in one of the most beautiful parks in Paris boasts an unbeatable view.

The industrial architecture honors the laborers who brought the Exposition Universelle of 1900 to life.

This bridge was constructed from the rubble of the infamous Bastille.

In this Parisian garden's grotesque former life as a zoo it fed exotic animals to the bourgeois and put humans on exhibit.

The recovered bones of martyrs slaughtered during The Terror are on display in this church crypt.

A popular shrine where the Blessed Virgin allegedly appeared in 1830, displaying a holy armchair and two incorruptible remains of Lady Saints.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.

The first green space constructed on an elevated viaduct.

A majestic lion statue guards this Parisian botanical garden, and feeds on an unsettling item.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

19th century pendulum and a clock restored by a rogue group of guerilla artists.