Legend has this precariously placed rock was placed by giants. Science has another explanation.

Mother Nature outdoes herself with this stunningly beautiful set of caves carved into marble.

After millennia of erosion by sand and churning water this Brazilian valley now looks like a lunar fantasy.

Strange rock formations tower above the river that snakes through this enchanting Icelandic canyon.

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

With nickel-steel armor and three-inch thick bullet resistant windows, FDR's train was a rolling fortress.

A perfect circle of twenty-four mysterious holes dates back to prehistoric time.

A community of collapsing homes more than a mile out from the Florida coast.

"Excuse me sir, your submarine is blocking my building."

An ingenious solution to a tricky engineering problem, this spiraling bridge takes drivers for a dizzying spin.

One of the world's largest tanks mimics the experience of watching rare whale sharks, giant rays, and deep sea creatures from the ocean floor.

A sobering scientific reminder of the human damage caused by the advent of the nuclear age.

The largest collection of model trains in the world is actually run using full-size locomotive technology.

A small Japanese village claims to be the final resting place of the son of God (and God's other son's ear).

The world's shortest escalator doesn't seem to have any reason to exist other than to hold a world record.

This bridge is so steep it looks like a rollercoaster.

Giant art made in Japanese rice fields.

Transport yourself to the 1980s era of video games at this themed restaurant and bar.

Make your own fake treats at this factory and workshop in the epicenter of Japan's food replica industry.

Founded over a thousand years ago, this shrine is said to be built on the site of a warlord's harem prison.

This little replica of Lady Liberty provides a bit of NYC in a Japanese city.

The largest volcanic caldera in Japan holds an entire city in its maw.

This active volcano's siren song to suicide jumpers forced authorities to build a fence.

A Japanese cat island also populated by the descendants of a band of banished samurai.