Crouch down, stretch tall, and be sure to flail your legs to pay homage to the Monty Python classic.

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.

A commemorative plaque hides a door that leads down to the New York Public Library's underground book bunker.

Community bookshelf of 25-foot-tall book spines.

Four, 18-foot-tall badminton shuttlecocks lie scattered about the lawn of a Kansas City museum.

James Turrell's total color immersion art installation, hidden on the top floor of a luxury handbag shop.

A new kind of theme park for adults off the Las Vegas Strip.

The so-called "Father of Las Vegas" had the city's first telephone installed in his office in 1907.

At high tide this strange footbridge appears to have no purpose whatsoever.

A small but industrious mining operation that allows visitors to touch precious gems while they are still in the rock.

There are eight natural springs around town, each with a slightly different taste.

Located in the world's highest-altitude Dark Sky Community, this observatory welcomes amateur and professional astronomers alike.

The larger of two volcanic peaks rising out of the crystalline waters of the Caribbean.

The world's only above water sand volcano, believed to once be the bathtub of a priest.

Tour the inside of a massive lava tube formed during a 1949 volcanic eruption.

A natural dome made of volcanic glass in Inyo National Forest.

A volcanic cone that formed over 600 years ago.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

Deep vertical fissures like miniature slot canyons cut across the cemented volcanic rock of Black Point above Mono Lake.

An unexpected sinkhole in a desert flat within Gold Butte National Monument.

Generations of rockhounds got their start at this beloved, historic mine.

Small-town museum dedicated to outer space ... and bicycles.

This razorback ridgeline has doubled as a scenic drive since the early 1900s.

The site of the "Bone Wars" between two rival paleontologists during the dinosaur rush of the 19th century.