In the Monastery of São Vicente resides a gallery devoted to a breathtaking collection of seashells.

Portugal's National Pantheon has a history of curses, collapses and financial problems.

This tile-work piece featuring a chicken riding in carriage is both a remarkable artistic creation and a social commentary of politics and culture in 17th-century Portugal.

A garden in Lisbon filled with giant porcelain creatures.

For more than two centuries, the canopy of this venerable tree has been a haven for songbirds and lovers.

At night, bats patrol this magnificent 18th-century space in search of book-eating pests.

A 16th century chapel decorated with bones, skulls, and entire bodies hanging from the wall.

This crumbling Portuguese ruin overlooks the populace it once ruled.

The Cathedral of Salamanca has a number of unusual carvings but none so surprising as a modern astronaut.

This chapel is the site of a yearly pilgrimage that originated during the Middle Ages.

A cluster of granite granaries perched on stilts.

These narrow stone granaries have been used to store and dry out grain for hundreds of years.

An icon of the city, this chapel features an amazing dome ceiling and offers panoramic views.

Local lore says the devil built this beautiful medieval bridge to help a fleeing bandit.

A stunning 18th-century site where pilgrims ascend by a series of punishing stairs only to return via funicular.

A devasting 2020 fire left this historic seminary in ruins.

An early work of the architect Álvaro Siza Vieira, these swimming pools blend into the beach.

A small but charming botanical garden that contains many exotic plant species.

A hidden three-foot-wide house separates these two regal churches.

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

When this former hospital pharmacy closed in 2013 it already looked like a museum, so they turned it into one.

This museum is home to one of the biggest collections of printing press technology—plus a river view.

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

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