Dedicated to a local cow who escaped a slaughterhouse and became an international symbol of peace.

The Boston home of a conductor on the Underground Railroad.

19th-century operating theatre in which the use of ether was first demonstrated - plus, a skeleton and a mummy!

Designed to honor all those that work as nurses around the globe.

A luxury hotel constructed out of a former jail.

Former home of an abolitionist couple who escaped slavery and established the most active Underground Railroad stop in Boston.

The language and heritage of a nearly forgotten culture can still be explored in this Southern enclave.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

The largest land animal skull ever discovered.

Once the path of a railway tunnel, now home to thousands of glowing insects.

For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.