One in a series of historical markers from the massive 19th-century undertaking to map all of India.

The abandoned Bermudian home of a British naval leader is surrounded by crumbling sporting fields and the graves of convicts.

A half-mile-long stretch of medieval forts built after a devastating pirate attack persists amid the modern port city.

Europe's largest prehistoric mound – burial site of a legendary king?

A lake with hundreds of ancient skeletons surrounding it. The surprise is what killed them.

The world's largest rose bush has literally outgrown the pioneer museum it was planted behind.

The world's largest collection of artifacts from our history of industrial gas use is hard to simply pass.

Berlin's oldest surviving academic architecture hosted decades of animal dissections.

Henry VIII's forgotten castle was built by the gunpowder-obsessed king to be defended solely by cannons.

The oldest and smallest cemetery in Paris is only open to the public twice a year.