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

A much more welcome kind of snowbird vacationer, manatees camp out in these springs every winter.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world’s largest coastal brick fortresses.

This massive Maya archaeological site is home to the tallest man-made structure in Belize.

These roaring primates were considered a divine creature in the cosmology of the Maya.

Monkeys inhabit the lush forest surrounding ancient Mayan ruins once considered sacred.

Deep in the Guatemalan jungle stands an ancient pyramid that once marked the reign of a king.

This portion of a lovely Belize beach is infested with (harmless) sharks and rays.

A six-ton, 12-foot-tall concrete prairie dog is touted as the largest in the world.

This park straddling the United States-Canadian border has been a symbol of peace since 1932.

This giant slab of driftwood marks the beginning of the Winnemucca to the Sea Highway.

The record holder for the world’s largest peach.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

A towering bronze statue memorializes the founding father of postwar American conservatism.

A museum and tribute to a brave profession.

A former department store turned into a quirky restaurant.

The first permanent memorial to a unique secret weapon of World War II.

Once a year, at exactly 11:11 a.m., this monument comes to life.

The unusual burial monument of Arizona's first governor.

This small, unassuming street is now a canvas for color and creativity.

A geological mystery on Camelback Mountain.

In this small Phoenix taxidermy emporium, you can find everything from a squid in a jar to a freeze-dried toad.

Thousands of Mexican Free-Tailed Bats soar around an abandoned storm drain at sunset each summer.

A mysterious "wedding cake" castle in the middle of the urban desert.