A spiritual vortex among the red rocks in Sedona.

Established in 1925, Kiddie Park claims to be the oldest amusement park in the U.S. - a cozy little time warp nestled in a shady corner of the modern world.

There aren't too many operational funiculars around, but Pittsburgh has two!

A book collector's dream, this Toronto bookstore has the world's first "Biblio-Mat," a random book vending machine.

One of the largest underground systems runs under Canada's largest urban center.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

These Pre-Columbian petroglyphs contain representations of birds, deer, hunters, and even some early Native flute players.

This quirky hot springs town known to locals as "T or C" was named after a radio show.

A historic coal mine that doubles as a museum and tourist attraction.

The world's longest known cave system.

After a water tower painting was accused of being an ad, a simple fix was made that gave the city a motto.

The world's tallest doric column is this Ohio monument to a naval victory in the War of 1812.

A 70,000-square-foot institution dedicated to a very literal, creationist perspective on the Book of Genesis.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

A beautiful geyser under environmental threat.

This Yellowstone geyser may not shoot as high as the nearby Old Faithful, but it erupts for considerably longer.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

Manatees congregate around a power plant's discharge canal where the water is especially warm.

A local prank turned town icon.

This handsome giant is said to mark the birthplace of the mythical woodsman and even had a cameo in a Stephen King novel.

Mysterious rocks that ring musically when struck.

Eccentric concrete mansion and museum designed and built by hand from the inside out.

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