A 200-year-old bar with a cheeky name claims to have served Edgar Allan Poe his final drink.

This inexpensive lodging house was once a prison notorious for its inhumane practices.

Canada's subterranean Cold War museum has doubled as a movie set.

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

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

The world's oldest bookshop still in operation.

This mesmerizing kinetic sculpture blossoms endlessly in the breeze.

Colonial architecture meets urban art in this sprawling open-air gallery.

Elaborate tile work in this railway station tells the story of Portugal.

This giant sculpture made of trash is a critique of society's wastefulness.

Ancient catacombs form the foundation for this Rococo orgy of a church.

This restored Portuguese cafe may well be the most beautiful place in the world to grab a Big Mac.

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

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

A speck of nature and art in one of San Francisco’s most notorious neighborhoods.

A walk down memory lane in the heart of one of San Francisco's most notorious neighborhoods.

A massive ultra-modern church presents a science-fiction view of Catholicism's inclusive future.

With statues of Nelson Mandela and Harvey Milk this monument has been called the Mount Rushmore of California.

International delicatessen has been owned and operated by the same family for more than 110 years.

Julia Morgan's Moorish-Gothic labyrinth of fountains, trees, natural light and Oakland's notable dead.

This Elizabethan hedge maze is one of only six in North America.

A unique music museum housed in a historic Boston theater.

This architectural wonder of Mexico City houses several art schools and national research centers.

Get up close and personal with these majestic fish.