This multisensory alley has the ability to remind bustling citygoers to stop and smell the roses.

A monument to the King's final show, complete with a time capsule.

This Indianapolis landmark offers a secret panoramic view of the city. 

A 30-year-old Sycamore tree grown from a seed taken to the moon and back.

At the top of the hour, this steam-powered clock's eight brass whistles play "Back Home Again in Indiana."

A natural gas leak provides a flickering flame beneath a waterfall.

In the power of this waterfall, Alexander Hamilton saw the potential for industry.

Both funky and traditional, it's the oldest of its kind in Indiana.

Earth's greatest purely vertical drop at 4,101 feet.

This scenic gorge is named after one of the most famous Bigfoot attacks in pseudohistory.

At just six feet two inches deep, it is said by Guiness and Ripley to be the world’s narrowest freestanding office building.

A unique spiral staircase that doesn't quite make it up to the top floor.

A working steam clock, one of only a few in the world, located in Vancouver's Victorian Gastown.

This is an amazing but little known tile mosaic mural that used to grace the lobby of an office building in 1958, but now can only be seen from the second floor of a Shoppers Drug Mart.

Surprisingly Delicious Asian-Style Hot Dogs.

A free museum that memorializes the deadliest river flood in American history, and the civil engineering efforts to tame the Mississippi River.

One of the finest examples of a black soil prairie that was barely saved by the Great Depression.

The Midwest's reigning king of surplus stores is full of nothing you need and everything you want.

The wreckage still sits at the exact spot the plane crash-landed in 1945, carrying 1,000 pounds of explosives.

One of the first intercontinental ballistic missile sites in the United States.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

Covering 37 subterranean acres, this Armillaria gallic is a famous fungus with its own festival.

A restaurant and lodge in northern Wisconsin which served as a clandestine hideout for John Dillinger and featured one of the most famous botched FBI raids in history.

Many of the murals covering this sleepy Florida town hide some sort of intentional error.