The world's longest known cave system.

A throwback train ride transports passengers through one of the lesser-known national parks in the country.

An abandoned munitions factory with a shot tower continues to wage war on the surrounding environment.

An unusual, super-sized grocery adventure awaits in an Ohio suburb.

These beautiful wineries were at the center of Lake Erie's "grape belt" back when the Midwest dominated American wine production.

The largest ancient burial mound in Ohio.

Deep scars on the earth left by the Ice Age.

What is it about mushrooms that makes people wish they lived inside of them?

These sub-farmland caves are home to a majestic stalactite known as the "Crystal King."

Rare recess caves fill this unbelievably beautiful Ohio park.

This collection of Japanese luck idols beckons visitors with over 2,000 waving paws.

The largest earthwork effigy in the world.

Where beautiful signs live on forever.

Memorial to the father of the Republic of China.

The tangled roots of a giant banyan tree have fully reclaimed the ruins of this abandoned warehouse.

A waterfall runs right through the middle of this Taiwanese shrine to the hundreds of workers killed while building a nearby highway.

This Taiwanese promontory is covered in otherworldly hoodoo formations.

Looking for a crappy restaurant? Pull up a porcelain bowl and enjoy your meal.

An extraordinary natural landscape of mountains, waterfalls, and rocky cliffs riddled with tunnels.

Once a prosperous mining village, this tiny Taiwanese town is now overrun with cute cats.

Grandpa Rainbow felt the neighborhood needed some color, so he picked up a paintbrush and went to work.

One lonely, modern pyramid has gone from corporate think tank to deserted boondoggle.

This feline raises a friendly paw at drivers barreling toward the freeway.

A rare pod of derelict midcentury Futuro and Venturo houses lines a semi-abandoned beachfront resort outside Taipei.