You can walk through the first Boeing Air Force One, which famously carried JFK's casket from Dallas back to D.C.

This humble star-gazing center touts itself as the "Birthplace of American Astronomy."

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

A castle built by an eccentric medieval enthusiast in suburban Ohio.

The largest earthwork effigy in the world.

This giant, granite purse is one of Melbourne's most unique and distinctive pieces of public art.

Home to the oldest operating roller coaster in the Southern Hemisphere.

The largest shot tower in Australia is a unique reminder of industrial ammunitions history.

This area was created to save the region's koala population.

An obsolete form of timekeeping still marks the hour in this adapted 19th century lighthouse.

These 400 million-year-old caves feature honeycomb limestone formations.

Australia's only intact colonial warship never saw action before being turned into a scenic wreck.

Three-story concrete ram with a permanent gift shop.

Australia's first open air museum and antique 3D theater.

This classic photo booth was saved from destruction by the local community.

Taxidermy of the racing horse with a huge heart, who inspired hope in the Depression.

This historic tall ship traveled 1.5 million miles around the globe, and once did duty as the mythical pirate ship in Peter Pan.

Enjoy all the trappings from 1912 aboard this Titanic-themed restaurant.

One of the first big sculptures anywhere in Australia.

Every hour a secret compartment drops from this giant pocket watch, revealing a lovely surprise.

This 19th-century convent is now a flourishing 21st-century hub for art.

Popular tourist destination now stands as a memorial to Sam the koala.

The 18th-century home was disassembled into 253 cases and brought all the way from the other side of the world.

The once-dying town of Sheffield, Tasmania has reinvented itself as a village of painted wonders.