This group of small islands on Lake Nicaragua formed after an eruption of the Mombacho volcano.

The most gigantic, swoony, intimidating trio of fingers in all of antiquity.

This exceptionally well-preserved ancient marvel also houses a small museum dedicated to Jordanian folk tradition.

Known as the "Valley of the Moon," this Jordanian wadi is one of the most amazing desertscapes on Earth.

An ancient capital city that dates back 3,000 years old and harbors many surprises.

Thousands of colorful pirogues showcase ingenious craftsmanship at the largest fishermen port in Nouakchott.

Climb atop one of the world's longest and heaviest trains for an unbelievable journey across the Sahara Desert.

Five ancient libraries, little changed for centuries, preserve a medieval archive of Quranic lore and civic documents

An architectural relic that survived the hands of time.

This zombie-themed restaurant stands out in the heart of corn country.

Millions of dollars worth of sculpture decorate this Iowa city center.

A town honors its legacy of traditional American Indian pipe carving with one gigantic pipe.

This massive solar system model is sprawled out across Maine's suburban wilderness.

A massive underwater sinkhole made famous by Jacques Cousteau.

In the St. Francois Mountains in the Ozarks at 1,772 feet above sea level, Taum Sauk Mountain is the highest (and possibly oldest) peak in Missouri.

Giant granite rocks standing end-to-end like a train of circus elephants.

400 million-year old limestone caverns nestled in the Ozarks served as shelter and a hideout for cultures throughout North American history.

A warning to the weak-kneed: This narrow bridge does its swinging eight stories high.

The world’s largest truck stop includes a barber shop, chiropractor, and a huge museum with antique trucks.

The Iowa state contender for largest pan in the world oddly only comes in second or so.

Two hula hoops appeared on the tree after a storm, and the collection kept growing.

The oldest university museum west of the Mississippi retains its 19th century feel.

This 16-foot-diameter wooden coin has been standing in Iowa City since 2006.

One of just a few cities in the world to base their center of government on an island. Others: Paris and Osaka.