A spherical "micro-nation" in the heart of Vienna.

This former insane asylum now holds a pathological anatomy museum.

The final resting place for the remains of 143 Habsburg royalty.

The crypt of the imposing Stephensdom holds royal intestines and thousands of skeletons.

The beautiful baroque library of the Hapsburg empire.

A working cattle ranch with remarkably well-preserved prehistoric petroglyphs and ancient ruins.

See massive fossils that are over 200 million years old in northeastern Arizona.

Dramatic river bend surrounds a natural red-rocked pedestal.

Colorful sand dunes create a unique attraction in this part of Utah's red-rock country.

This quiet park's strange sedimentary spires were named after Kodak's color film.

The fifth-longest natural arch in the world, and the longest outside China.

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

A house carved into a rock in the 1940s.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

This massive mall has hundreds of shops, an amusement park, and a history of deadly amusement attractions.

The abandoned ruins of a failed resort hide on this verdant, picture-perfect island.

In a city that boasts four separate inclined cable railways, this is one of the busiest funicular lines in the world.

Every day is like Christmas on this street where the traditional Neapolitan nativity scene comes to life.

These "anatomical machines" are only one of the many strange items in this Italian crypt.

A favorite with sightseers, this Norwegian funicular provides easy access to a stunning view of Bergen and its environs.

An alien church provides much needed silence in the midst of a Finland shopping center.

This church also serves as a lighthouse complete with a beacon.