Peek through the gates at this oasis from the city, full of Old English charm.

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

Phil Mortillaro uses keys to bring art back to the Village.

New York City's smallest piece of private property.

The saddest little diner in New York.

A Pythagorean funhouse that tries, successfully, to prove that math is the coolest thing ever.

A whimsical, but often overlooked clock in Park Avenue.

Cryptic messages embedded in the New York City sidewalk.

Plot your trip through the city on the sidewalk.

This massive and unusual rock formation near Okotoks is the world's largest known glacial erratic.

Each August, one of the largest religious (and food) celebrations in the country is held in Boston.

The Hanshin Expressway goes right through its 5th, 6th, and 7th floors.

This lab's maddening silence is good for business but bad for sanity.

One of the ghostly stops along Route 66.

A field of nothing but boulders which resembles a giant's gravel driveway.

Millions of glowing microscopic organisms light up the waters of this luminous lagoon.

A grove of colossal man-made flowers built to collect the sun's rays.

A multi-storied adobe complex has been inhabited for more than a thousand years.

Not a single witness can attest to the creation of the world's largest geoglyph.

Tour the world's largest deep-hole dimension granite quarry, where you can view the plant where gravestones are made and roll a ball down the outdoor granite bowling alley.

"Alleys of Stone" form natural mazes in Spanish natural park.

Geological storytelling.

Wee (and not so wee) footprints that insects and reptiles of the Paleozoic Era left behind.

The old Niles Canyon Aqueduct in the San Francisco Bay Area is a bemusing and secret trail through nature for wayward travelers.