This strange sculpture of a menacing skull surrounded by sun rays was discovered at the foot of the Pyramid of the Sun.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

The name of this tiny pocket park tucked between two buildings on Manhattan's Upper West Side is Latin for its location: "seventy-one."

A beach made of semi-precious green sand on the Big Island of Hawai'i.

This black shoreline is made up of exploded lava particles.

A massive sea stack famous for its appearance in The Goonies.

Come for the speed, leave in love with the desert.

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

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

A popular European tradition makes its way to the states on one of America's most famous bridges.

A wall of chewing gum moonlights as collective art.

The magic's in the hole!

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

360° views of the city plus five floors of optical illusions and hands-on science.

The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

Famously misunderstood wonder of the ancient world

Medicinal spa created with the discharge from a geothermal energy plant.

These fantastically named natural pools look like something out of a Scottish myth.

On the Oregon coast there is a natural hole that seems to be draining the sea.

This ruined fort hidden at the top of Central Park can't seem to keep from losing its historical plaques.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

This stunning concert hall has become a symbol of Iceland's national recovery.

This fairy-tale, neo-Gothic church in the Azores is a world of magical realism.

This abandoned five-star hotel is now a five-star urban exploration destination.