This iconic hilltop church doubled as a lighthouse in the 19th century, guiding ships into the port of Valparaíso.

What was once a unique system of urban elevators is turning into a mechanical ruin.

A fantastical and futuristic temple of light built from nine monumental glass veils.

Board a mine car and descend the #190 slope 300 feet underground into the Clark Vein of coal.

Mysterious rocks that ring musically when struck.

Erected in 1697 this Philadelphia bridge is the oldest surviving roadway bridge and perhaps the oldest stone bridge in the United States.

An eccentric priest's tribute to George Washington, this chapel tells the story of the American Revolution.

This historic old movie house was the scene of one of the Blob's most iconic attacks.

This extraordinary Depression-era expenditure was modeled after a postcard of a Mediterranean hotel.

A local prank turned town icon.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

This campus chapel is Robert E. Lee's final resting place and a topic of debate about the legacy of the Civil War.

Thirteen pastel palaces in downtown Charleston add a gorgeous splash of color to the city.

A small park on Bourbon Street features life-size bronze statues of New Orleans musicians.

A museum and shop on Bourbon Street located in the former home of the second Voodoo Queen of New Orleans.

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

An 18th-century Spanish watchtower made entirely of seashell and concrete.

A tribute to Ponce de Leon's supposed quest for eternal youth.

The highway's southernmost spot is a beloved local attraction.

A monument celebrating the idea of reaching inaccessible places.

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

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

Built by a king and rebuilt by an emperor, this aqueduct transported water for 1,200 years to this ancient Mediterranean hub.

An ancient underground cultic temple where sunlight penetrates on the summer solstice.