These giant metal horses graze on a hilltop near the Montana highway.

Owned by no one but beloved by all, Brownie was a good dog.

One-time winter retreats of prolific inventor Thomas Edison and his friend Henry Ford.

The largest retailer of seashells in the world.

Road signs in Namibia mark the location of one of the five major circles of latitude.

This "dead marsh" sits among the largest sand dunes in the world, a forest frozen in time.

This wildlife trust is dedicated to orphaned elephant rescue and conservation.

Life and death are on parade at the most reliably perilous site of “the Great Migration.”

This African beach is home to thousands of rare mainland penguins that are known for their annoying voice.

This trio of Australian rock spires may have inspired aboriginal legend or just modern tourism.

Nine limestone rock stacks on Australia's "Shipwreck Coast."

Come for the flowers, stay for the bats!

One of the best beaches in the entire world.

The feral felines of Roosevelt Island have a small army of allies and an abandoned hospital all to themselves.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

Eighty million natural history specimens call this gargantuan museum home.

Notorious artist squat renovated into legal studios.

The sound of swaying stalks in this stunning grove has been named a governmentally recognized sound.

A crumbling hospital from the 1850s on Roosevelt Island.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the first ‘Harry Potter’ film.

A massive underwater sinkhole made famous by Jacques Cousteau.

This outdoor mural is one stop on a walking trail that weaves art and history together to tell a tale of local history.

A time capsule of Floridian history fights to survive on the banks of Chokoloskee Bay.