The world's largest collection of historic U.S. military naval vessels.

Enjoy an overnight at an old haunted B&B site of the Borden family murders.

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

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

This castle has links to Portugal’s founding and struggles for independence.

A unique seaside cave where Aleister Crowley faked his own death.

Perhaps the most spectacular grotto along the Algarve coastline.

Men in rubber-soled boots serve as your "brakes" on this toboggan ride Hemingway described as "exhilarating."

This glass skywalk offers vertiginous views down the volcanic cliffs to the beach below.

These small, triangular, colorful houses are a staple of Madeira Island.

As the highest point in the Mid-Atlantic range this stratovolcano offers spectacular views.

This Portuguese bullring is built right into the caldera of an island volcano.

On the cliffs of São Jorge in the Azores stand the remains of a lighthouse that was struck by a series of earthquakes.

Bits of flat terrain surrounded by cliffs make one of the most beautiful landscapes in the Azores.

One of few vertical lava tubes in the world accessible by foot.

This abandoned five-star hotel is now a five-star urban exploration destination.

Legend has it the lovelorn tears of a princess and a shepherd boy formed the blue and green twin lakes in the Azores archipelago.

One artist's collection of homemade handicrafts doubles as a monument to 20th-century material culture.

A 19th-century mansion houses the largest collection of gin in the European Union.

Europe's oldest still-operational tea farm also boasts a spectacular view.

This fairy-tale, neo-Gothic church in the Azores is a world of magical realism.

When Azorean green tea meets volcanic hot springs water, a luminous brew is born.

A perfectly circular lake is formed by the crater of an ancient underwater volcano.

Rainwater transformed this old quarry into a peaceful pond you won't find in most tourist books.