The final resting place of a space program monolith.

A heavenly experience, right here on Terra Firma.

This WWII aircraft museum presents its wrecks like taxidermy, complete with recreations of the crash sites.

A stoic rock cairn is all that remains to remember one of the more brutal instances of frontier treachery in American history.

The air force base preserves its scars from the Japanese attack on Pearl Harbor.

This Victorian marvel of engineering and artistic prowess is nicknamed the "Cathedral of Steam."

One of several skulls claiming to belong to the beheaded St. John the Baptist is on display at this Roman church.

The world's greatest slide descends 18 stories from this looping mountaintop viewing platform.

"You don't need a rocket scientist to build a steam engine, but we've got one." -Museum docent on the credentials of a restoration volunteer.

The echoes of a railroad town that solemnly mark the end of the line.

One family's environment-friendly hobbit-house in Wales.

A strange egg in a mucky bog of western Ireland marks the spot of an aviation milestone.

This museum looks at the history of one of America's most famous prisons and most beloved albums.

Each year a new straw behemoth is born.

A Nesting Doll of Churches.

The engineering wonder and pleasure dome of a much-maligned emperor still holds undiscovered secrets.

An alchemist's "magic door" stands in the middle of a Roman park.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

A submerged archeological park still holds the wonders of a Roman Sodom.

The old Niles Canyon Aqueduct in the San Francisco Bay Area is a bemusing and secret trail through nature for wayward travelers.

Dramatic river bend surrounds a natural red-rocked pedestal.

A fiery crater has been burning in the Karakum Desert since 1971.

A writer's tiny retreat built from salvaged shipwreck timbers.

The shell of a medieval fortress offers commanding views of the area it once protected.