A working cattle ranch with remarkably well-preserved prehistoric petroglyphs and ancient ruins.

Half of a waterfall goes into the river while the other half seems to disappear.

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

The world's longest known cave system.

This replica of the Greek structure is in the heart of Nashville.

This funicular railway rumbles along for a mile up the nearly vertical face of Chattanooga’s Lookout Mountain.

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

Where Venice's gondolas go for a tune-up.

Two stone columns flank the grand Venice square, but there were supposed to be three.

A new sculpture calls attention to climate change in the centuries-old city it threatens.

Go inside to really appreciate this 500-year-old technological masterpiece.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

Less a museum than a bizarre fantasy world created by artists and engineers.

An homage to everyone's favorite prehistoric cartoon family.

Most comprehensive museum in America devoted to one ethnic group.

An intricately carved Viking church overlooks a glistening fjord.

The celebrated eyesore created by starry-eyed sweethearts.

It houses the remains of a 17th-century version of the Titanic.

The world's first ice hotel is still one of the most elaborate and beautiful.

A memorial to the nearly 10,000 American soldiers laid to rest on the beaches of Normandy during WWII.

England's oldest surviving hedge maze has been confusing visitors for over 300 years.

Carved initials which are nearly 500 years old preserve the deposed Queen's presence at Hampton Court Palace.

Famously misunderstood wonder of the ancient world

Preserved baths in a Victorian-era spa town frequented by the most famous people of its day.