An unnatural lake in a naturally beautiful setting.

Invading U.S. troops were first seen from this now-abandoned tower, leading to the Spanish-American War.

This giant bronze image of Christopher Columbus embarked on a voyage of its own.

Legend has it this historic port was a popular hideout and smuggling spot for pirates.

On a small Puerto Rican island, banks of secret naval bunkers lie abandoned and filled with piles of office equipment.

Years of neglect and nature took a toll on this 19th-century lighthouse.

A magnificent waterfall nestled in the heart of the El Yunque National Forest.

An enchanting natural wonder in Puerto Rico's Camuy River Park.

This chapel on a cliff is renowned for its healing powers and was founded on the site of a supposed divine intervention.

This former sugarcane transport tunnel is now a portal to a lovely beach.

This niche museum devoted to ancient religious artifacts is shaped like the very thing it displays.

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

This limestone cave offers an incredible view of the Río Grande de Arecibo valley.

This small primate research island is teeming with playing, fighting wild monkeys.

Rusting, graffiti-covered tanks litter the beach of this island, once used by the U.S. military for target practice.

The world's brightest bioluminescent bay.

A typical "Old South" manor, once owned by author Anne Rice, served as the setting for several of her witchcraft sagas.

An old-timey wax exhibition campily depicting New Orleans legends and scandals.

This colorful New Orleans bookstore features rare and used titles, with a specialty in Cajun fare.

After the parade, students throw their beads on the tree hoping for good luck on exams.

Introducing the Green Fairy to her fawning masses.

The crumbling remains of a 19th century fortess.

Striking images of New Orleans history, including colonizers, soldiers, Klansmen, scientists, sharecroppers, and more, are depicted in frescoes that line the walls of this transportation hub.

Site of a former hidden treehouse in New Orleans.