From golden eagles to peregrine falcons, this rehabilitation and education center is a haven for birds of prey.

To find the "unicorns of the deep" you've got to go downstairs.

For more than 50 years, an iconic sign has greeted visiting “fudgies” to the Traverse City area.

A subterranean world of tunnels links several buildings of this rare 19th-century asylum.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

These pretty kitties killed and ate as many as 135 railway workers.

This sprawling bookstore spans four floors and has more than a million books in stock.

A Nessie-like monster supposedly lurks in this lake.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

A terrific purveyor of natural history objects and curios.

This historic headstone is said to mark the final resting place of a doubly-dead white witch.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

Every equinox this Maya pyramid puts on a spooky ancient light show.

Eighty million natural history specimens call this gargantuan museum home.

A Nesting Doll of Churches.

Breathtaking and huge 430 year old maps of Italy.

Dublin's "Dead Zoo" serves as a window to Victorian museum design.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

Former self-sufficient mental institution now a planned community.