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

The world's brightest bioluminescent bay.

Elevated freight railway turned wildly successful urban park.

A miniature city, once ruled by the Queen of the Netherlands.

Located within a historic park, the beacon is the oldest standing structure in Miami.

Island ghost town detailing Flagler's folly in building the Overseas Railroad.

The famous boat that once ferried Bogart and Hepburn still floats in Key Largo after being abandoned for years.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

A monument celebrating the idea of reaching inaccessible places.

A pocket of jungle amidst urban expansion in Panama.

Legend says if this neo-Gothic basilica is ever officially completed, the world will come to an end.

Quito's historic, main square dates back to the 16th century.

Site of the largest volcanic eruption in the last 25 million years, one which may have nearly wiped out humanity altogether.

Singapore's landscaping project is home to 18 incredible Supertrees.

Hindu temple of the dead home to hundreds of long-tailed macaques.

A Bibliophile's Dream.

Tucked away amongst townhomes lies a restored, early 20th-century tea house and garden, the only remains of a historic estate.