This museum preserves the heyday of Puerto Rican coffee.

This beachside town is home to a diverse nature reserve, multiple cays, and one of the three bioluminescent bays in Puerto Rico.

The bat-covered home of one of the world's most popular brands of rum is located on a tropical Art Deco campus.

The world's brightest bioluminescent bay.

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

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

Perhaps the most spectacular grotto along the Algarve coastline.

This gaping hole in the middle of a remote mountain lake looks like a portal to another dimension.

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

This charming candle shop has been in business since 1789.

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

The world's oldest bookshop still in operation.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

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

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.