The world's only museum devoted to the wonders of fluorescence.

This 1920s Amsterdam neighborhood was built as a giant experiment in concrete construction.

The spectacular history of spectacles on display.

Where royalty waits in the height of luxury.

The patron of this extravagant Art Nouveau confection insisted that nothing less than a boat should project from its facade.

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

This Parisian gem is one of the most incredible ethnographic museums in the world.

Architect Le Corbusier built his friend a cubist house to match his impressive collection of cubist art.

A lone cannonball remains lodged in the walls of the Hotel de Sens as a sober reminder of a revolution.

A modern-day Lascaux cave underneath Paris.

135 bronze medallions mark a French meridian line which once rivaled the hotshot Greenwich timeline.

Vast fan-shaped British cemetery honouring American servicemen lost in World War II.