This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

This landmark church concealed a crypt packed with bones that was discovered thanks to the London Blitz.

Since 1874, this macabre collection has developed into a museum devoted to Scotland Yard's mementos of dastardly deeds.

This long-hidden space above Westminster Abbey now displays the battle gear of the legendary King Henry V.

Its collection includes a broad array of social, geographic, graphic design, and political history.

Classic game cookery takes center stage at what's widely considered London's oldest restaurant.

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

A scandalous Art Nouveau collaboration that set Paris all atwitter at the turn of the century.

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

The remaining relics of the patroness of Paris lie in a chapel under a striking double spiral staircase.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

This former “ante-chamber to the guillotine” has been refurbished to illustrate the brutal history of French justice.