St. Augustine's record-setting narrow street was designed to protect against pirates.

This liminal destination combines creaky carnival rides, a classic car museum, and luck-of-the-draw flea market finds surrounded by dust and drive-in movie screens.

Recently celebrating its 25th anniversary, the garden opened in September 1997 to celebrate the men and women who have had the greatest impact on Key West.

An idyllic swimming pool tells the tale of Hemingway's trouble with women.

“Live hard, ride fast, eat pizza” at this joint filled with Evel Knievel memorabilia.

A unique shopping and dining park created from old shipping containers and filled with local businesses.

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

The notorious Wild West outlaw was raised in this unassuming abode.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

A sharp bend in a dramatic river canyon cut through red rocks.

Most-visited and most-photographed slot canyon in the American Southwest.

At this gas station in the middle of the desert, a convenience store has been carved directly into the rock.

Bizarre lunar-like landscape with thousands of large stone "hoodoos."

This raised bulls-eye visible from space was the subject of an intense geologic controversy.

The fifth-longest natural arch in the world, and the longest outside China.

This site is home to ancient petroglyphs and pictographs dating back to 6,000 B.C.

The largest island on the great salt lake is home to curious creatures and strange stories.

The last SR-71 ever constructed.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

The unusual patterns in this rock formation result from two distinct modes of weathering.

A tunnel with windows, so you don't miss out on the impressive views.

Colorful sand dunes create a unique attraction in this part of Utah's red-rock country.

Nature has shaped this drainage tunnel into the digestive tract of a mighty beast.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."