One of the largest free-standing structures ever built, this dirigible hangar is now simply a giant skeleton.

A lonely monument to the original Silicon Valley tech campus.

The headquarters of a secretive order is also a beautifully-designed park.

An extensive collection of ancient Egyptian artifacts and mummies.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

A striking, modern church devoted to a nun who loved God and beer.

This spooky statue sits outside a famous Prague theater.

Looming communist pillar with a Czech twist.

Synagogue built from the stones of Solomon's temple contains the golem of Prague.

What looks like a suicide in progress is actually a statue of Sigmund Freud.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

A church of bones, decorated with 40,000 human skeletons.

Macabre astrological automaton clock dating to the late 1400s.

The ruins of New Zealand's largest classical-style church.

High winds can make this one scary landing.

A New Zealand communications tower stands as the tallest structure in the Southern Hemisphere.

New Zealand's only running funicular railway.

The platform atop this verdant volcano was built with the help of a royal elephant.

This unusual rock formation looks like an apple that has been neatly sliced in half.

Major tourist destination known for its bubbling mud-pools and hot thermal springs.

A galaxy of glowworms—larvae of a gnat—hides deep in the belly of these caves.

According to legend, this rock represents a young girl trapped by an evil ocean spirit.

Fifty years after a “blast blasted blubber beyond all believable bounds,” this idyllic natural area commemorates the carnage.

Home of Howard Hughes' Spruce Goose.