Improbably, the largest wildlife refuge in the conterminous 48 states sits just northwest of Las Vegas, Nevada.

Las Vegas's very own 40-foot-tall fire-spewing praying mantis.

An exotic wildlife habitat right off The Strip.

The largest collection of model trains in the world is actually run using full-size locomotive technology.

This historic building provides a powerful glimpse into the lives of Japanese Americans forced to relocate during World War II.

In this subterranean brick arcade, a small shop continues the ancient practice of bookbinding.

A house filled to the brim with oddities and curiosities.

A collection of haunted objects and macabre oddities under one roof.

Thousands of artifacts relating to human sexuality, including the world's largest sex bike.

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

This incredible collection of vintage pinball machines can be played at 25 cents a pop.

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

Surprisingly Delicious Asian-Style Hot Dogs.

This Art Deco masterpiece has stood in for some of the most famous buildings in comic book history.

Traditional 15th century Chinese garden in the middle of Vancouver.

Locals transformed this Canadian evergreen into a secret hangout with spectacular views of Vancouver's skyline.

This Elizabethan hedge maze is one of only six in North America.

This expansive bridge in the Canadian wilderness was originally just built for friends.

While these wooden totems bear a striking resemblance to First Nations artwork of British Columbia, their actual origins lay on the opposite side of the Pacific Ocean.

Historic psychiatric asylum and most-filmed location in the Great White North.

This pre-Revolutionary War grist mill ground corn and flour for soldiers in seven American wars.

The largest cemetery for enslaved people in Loudoun County was almost lost to history, if not for the research of a minister.

The semi-reclaimed ruins of this canal were once part of an ambitious plan to reroute the mighty potomac.

A 10 million-ton rock once worshiped by the Tahamies Indians, accessed by an astounding staircase.