Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

A proud bronze billy stands as an eternal symbol of Ireland's oldest festival, where a goat is made king.

An Irish church where an 800-year-old mummy is reaching out of his coffin as if to shake hands.

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

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

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

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.