The remains of the second-oldest zoo in Europe can be seen within these library gardens.

A whimsical brother of the nearby Fallen Angel statue takes the falling part quite literally.

A lush indoor jungle fills this bustling Madrid transportation hub.

Commonly acknowledged as the only public monument to the Devil himself.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

Possibly the oldest church in Barcelona, this basilica has its pagan and Christian mythologies all mixed up.

The largest Art Nouveau complex in the world is a Barcelona hospital with a 600-year-long history.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

New Jersey's last historic covered bridge was rebuilt from pieces of the original 19th-century structure.

This quaint New Jersey graveyard is an eternal resting place for thousands of beloved pets.

The rusting remains are visible sticking out of the waters of the Delaware Bay.

Step into Monet's world at this fine-dining restaurant in the middle of a New Jersey sculpture park.

Several times a year, during low tide, two pairs of historic train tracks are revealed on this New Jersey beach.

World War II bunker still standing on the New Jersey beach.

This Great Depression-era creation was once known as the strangest house in the world.

Step inside Lucy, the world's largest "elephant."

This historic iron-working village is now a ghost town so immaculate that it looks as though it was recently built.

A unique sculpture park that specializes in the huge and bizarre.

A statue of the English poet for whom this Delaware town is named is ritually dressed in seasonally appropriate clothing.

One of the oldest surviving Swedish-American homes in the United States.