A celebration of solstice followed by a fiery purging of evils.

A curious carving hides on a marble column in the Mosque-Cathedral of Córdoba.

Spain's unique Mosque-Cathedral has been a place of worship for both Muslims and Christians throughout its history.

The final resting place of the great navigator, or maybe his brother.

Over two centuries old and counting, Madrid's massive botanical garden contains one of Europe's only desert environments.

Founded as a refugee camp, now a popular tourist spot.

This landmark cemetery in Boston was created more than 300 years ago.

The site of Paul Revere's historic two lantern warning.

At Chicago's revered Field Museum, visitors are invited to learn about and literally explore DNA.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

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.

An historic and oft-filmed spot for musclebound iron pumpers on the Pacific coast.

This hilltop park offers magnificent views and a Frank Lloyd Wright masterpiece.

Scores of vintage street lamps shine along L.A.’s Miracle Mile.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

It should come as no surprise that the best view of the Hollywood sign is from Batman's lair.