Architectureal fantasy quarter of Rome.

Geothermal waterfalls in Tuscany.

Featuring a meatless buffet fit for kings, this family-owned Zurich eatery is considered the oldest vegetarian restaurant in the West.

This black shoreline is made up of exploded lava particles.

A monument in Washington D.C. marks the spot from which all other roads were supposed to stem.

One of the largest Roman settlements in Portugal.

This unassuming chapel in Portugal plays host to a ghoulish collection of bones.

This popular pilgrimage site offers a hole filled with holy healing dirt.

Wedding chapel's mysterious spiral staircase said to be miraculously constructed.

A popular winter vacation destination for migrating monarch butterflies.

A massive volcanic plug is now a protected area that hosts a number of bird species.

A popular tourist cave with a dark past.

The interior of the Overlook Hotel in "The Shining" was based on this Yosemite original.

Four hundred granite steps were built into this massive rock by the National Park Service.

Quite simply the largest tree in the world (by volume).

Island ghost town detailing Flagler's folly in building the Overseas Railroad.

This statue inspired by Renoir's famous painting embodies the jovial spirit of Key West.

A historic presidential getaway on the continental United States' southernmost island.

Florida's oldest bar was once a morgue, complete with a hanging tree and gravestones.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

A monument celebrating the idea of reaching inaccessible places.

Here lies Lilly E. Gray, an alleged "victim of the beast," but the reason long remained a mystery.

Incredible sculptures inspired by obscure passages from the Bible.

A hidden garden of stones engraved with scriptures, a Joseph Smith Sphinx, all carved by one man.