One of only five observatories in the world built to measure the Earth's wobble.

The beautiful behemoth is one of the largest trees of its kind in the United States.

One incredible room in the Santa Barbara Courthouse is covered in wall-to-wall canvas murals.

The largest earthwork effigy in the world.

This ultra-modern California span is actually a titanic solar clock in disguise built by famed architect Santiago Calatrava.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

This Las Vegas casino boasts one of only three spiral escalators in the United States—an engineering wonder.

The second-largest gold nugget in existence, displayed in a Las Vegas casino conveniently named the Golden Nugget.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

Flashy signs from Las Vegas’s past find their final resting place at this unusual graveyard.

Keen eyes can find the Disney influences throughout this treasure trove of a tiki bar.

Formerly the world's largest, this Willy Wonka-esque contraption runs 24/7.

The largest recovered section of Titanic sits in a hotel in Las Vegas.

These banned cigarette vending machines now sell little pieces of pocket-sized art.

A tiny slice shop hides down an unmarked hallway in a Las Vegas casino.

A giant open-air sculpture made of over 200 full-sized boats.

Tatsuo Miyajima shares a philosophical appreciation for life with the latest human technologies.

An enormous illuminated figure dances on the Las Vegas strip.

A rough granite monument marks the spot where Europeans first caught sight of the San Francisco Bay.

Another of California's unused Cold War missile defense complexes has become a graffiti gallery.

Tiki luxury on Nob Hill.

Concrete pillars provide a beautiful canvas for Quebec City's graffiti artists.

This steep cable railway has been hoisting passengers in the heart of Québec City for over a century.

The floating gallery illuminates the heart of Québec City's arts district.