L. Frank Baum wrote part of the "Wizard of Oz" series in this wooden Victorian beach resort.

Huge otherworldly domed rocks on the shore of a deadly lake.

At this deceptively beautiful beach, nothing is what it seems.

This giant temperature attraction created some giant electric bills.

A volcanic cone that formed over 600 years ago.

A popular East Bay hiking trail houses the ruins of a sanitarium that was destroyed in a blaze 50 years ago.

A playground built by the kids that is a child's wonderland, and a helicopter parent's nightmare.

Wander down a side street dedicated to one of the members of the Beat Generation.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

The quintessential Japanese rock garden has existed for more than 500 years.

Once the main gateway to Tokyo, sneaking through this checkpoint was a capital offense in feudal times.

A wonderful collection of fossilized dinosaurs and other creatures that roamed the landscape millions of years ago.

This museum boasts the ninth-largest collection of insects in North America.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

This castle has links to Portugal’s founding and struggles for independence.

A stunning 18th-century site where pilgrims ascend by a series of punishing stairs only to return via funicular.

A hidden three-foot-wide house separates these two regal churches.

Natural stone arches form a walkable "cathedral" at low tide, then disappear entirely when the water returns.

Made up of 3,200 recycled glass bottles, this tree pays homage to Asturia's love of cider.

A statue honoring the tragic heroine of a Spanish literary masterpiece.

The atmospheric ruins of a historic church can be found on a hill above the city of Oviedo.

Hundreds of stone stairs and a winding medieval bridge connect this haunting Spanish island to the mainland.

A small museum dedicated to the history and design of German packaging.