This is the largest cemetery in Ireland and the first cemetery museum in the world.

An Iron Age fort on the edge of a seaside cliff offers a glimpse into an ancient, mystical world.

This ancient Irish landscape boasts hundreds of legendary ruins.

Perfectly preserved ancient monastery in an impossibly dramatic location on a rocky island in the Atlantic.

This Irish show cave is said to have been the site of a Viking massacre that claimed 1,000 lives.

This floating garden in the sky is straight out of a fairy tale, but the real thing is nothing short of magical.

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

A European-style bath house in Chicago.

A chance to follow in the footsteps of the word's most legendary animator.

No one knows how many bodies are in this vault in a Chicago public park.

Small and slightly hidden, the American Writers Museum is preserving the legacy of America's finest authors.

This landmark of the Chicago silent film industry may not be in the picture business anymore but it still stands proudly.

One of the largest pieces of scientific equipment ever carried on a NASA space shuttle sits in a Chicago alley.

This modest post office sits on the site of H.H. Holmes' famous murder castle.

A little-known subterranean street runs under some of the best-known buildings in Chicago's River North.

This alley in downtown Chicago held the bodies of over 600 people after the fateful Iroquois Theatre fire.

Chicago's North Park Village was once the largest municipal sanatorium in the country.

Chicago's museum dedicated to the history of bondage and fetishism is more textbook than titillation.

These abandoned grain silos and tunnels are an urban exploration dream.

The only Bahá'í house of worship in North America and one of only a handful worldwide.

Chicago's largest cemetery is full of beautiful Victorian monuments and more than a few ghost stories.

The subtle science of a master molecular gastronomist.

A monument to the art of slicing people open.

This unassuming home was once “grand central station” for the Underground Railroad.