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

The culprit who accidentally lit this 3,500-year-old tree on fire stated "I can't believe I burned down a tree older than Jesus."

A building so large that it has its own weather.

In memory of the 110 victims of ValuJet Flight 592 that crashed in the Everglades.

In the depths of the Everglades, one man has dedicated his life to studying the elusive Skunk Ape.

The smallest post office in the United States is no bigger than a broom closet.

Many of the murals covering this sleepy Florida town hide some sort of intentional error.

The largest retailer of seashells in the world.

One-time winter retreats of prolific inventor Thomas Edison and his friend Henry Ford.

This kitsch eatery is chock-a-block with bric-a-brac.

A larger-than-life statue of America's favorite sundae marks the place it was invented.

The "world's biggest dinosaur" once housed a creationist museum in its abdomen.

Named after a bandit and the star of several Hollywood prehistoric landscapes, these sandstone formations are a historical part of the Los Angeles natural landscape.

Yo, Adrian!

This abandoned bridge is now a favorite haunt for graffiti artists.

The abandoned bathhouse is all that remains of the hot springs considered Florida's original tourist attraction.

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

Pensacola's UFO home has withstood many hurricanes—just as the experimental 1960s design intended.

The bespectacled, cocktail-sipping pachyderm is a strange but fitting liquor store mascot.

The highest point in the state of New Hampshire, and while unlikely "the worst weather in the world," it sure seems that way to hikers.

Come for the gun-toting hillbilly madman, stay for the ice-cream loving basketball bears.

Maybe the only missile installed in a public park, this Cold War leftover was one of the first to carry a nuclear warhead.

The highest peak in the state of Vermont has some interesting features.

This path is named for a mythical half-boar, half-deer creature that once roamed the Green Mountains.