This narrow canyon has been carved by the river over thousands of years into spectacular and curious forms.

A blend of art, antiquities, and Americana fill this museum, surrounded by whimsical, enchanting gardens.

Long-forgotten artifacts give incredible insight into New York's most glamorous hotel.

Pablo Neruda's custom-built lover's nest was made to remind him of the sea and named after his mistress' hair.

The Victorian-era greenhouse is stuffed with tropical plants, and open 365 days a year.

One of the last few places in Manhattan that employed a pneumatic systemic keeps it on display.

This ancient structure is widely thought to be the oldest intact pyramid in the world.

This natural wonder is disappearing at an alarming rate.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

Statue commemorating the use of ether in anesthesia.

Curious crustaceans support an obelisk from ancient Egypt that now stands in modern-day Central Park.

Elevated freight railway turned wildly successful urban park.

Neighborhood in Jerusalem is home to the ultra-orthodox haredim.

After over 100 years out of service this landmark windmill once again turns as a symbol of Jerusalem's self-sufficiency.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

It's just another skyscraper, but it's shaped like '90s cell phone.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

Two distinctive homes on a New England village green look like a couple of frosted wedding cakes.

The beautiful baroque library of the Hapsburg empire.

This futuristic airport terminal was abandoned for decades before reopening as a hotel—with a vintage plane of its own parked out back.

A massive, heart-shaped, wind-carved crater in the middle of the Israeli desert.

An ancient capital city that dates back 3,000 years old and harbors many surprises.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.