This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

The stunning interior of this Gothic church is covered in ornate gold details.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

This small chapel is built of human bones and decorated with a golden skeleton.

The world's oldest bookshop still in operation.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

The Boston square dedicated to the dark poet who was born nearby.

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

A beautiful Victorian-era cemetery, complete with a miniature village.

An enormous, inside-out glass globe built in 1935.