Once a bustling cotton factory, this early 20th-century building is now home to a thriving artspace.

It may look like no more than a full-scale model, but every part of this full Space Shuttle stack had a working role in aviation history.

A propulsion engine testbed that paved the way for the Space Shuttle launch sits without recognition at this rocket center.

These molds for fiberglass statues have formed an eerie, accidental sculpture park.

Perhaps the oldest vine in North America, this sprawling plant helps make a sweet wine.

The pharmacy's retro ice cream mixer is one of the last of its kind.

Ancient structures used to make and preserve ice in the deserts of Persia.

Locals call this magical moss-covered walkway the "Emerald Path."

The largest and best-preserved Roman amphitheater in Africa was designed to seat 35,000 people.

At this sweet shop, the descendants of a royal chef serve up the fudge-like dessert his ancestor invented for a king.

This giant sculpture made of trash is a critique of society's wastefulness.

The world's tallest circular building is loaded with symbolism, but many just see a big donut.

Climbing this abandoned railway leads to breathtaking vistas of O‘ahu.

The park is home to the United States's only still-operating Dutch windmill.

The remnants of an early automobile route across shifting sand dunes can still be found in the deserts of Southern California.

Little India's hidden gem of kindness and good food.

A series of three shiny letters mark the boundary of an old refuge for those being pursued by debt collectors.

A verdant 17th-century-style garden hidden along Edinburgh’s Royal Mile.

Anonymously sculpted and donated, these sculptures made from poetry books and pages are sprinkled around the city.

This 16th-century house tells the city's history through old artifacts and quirky tales.

This 16th-century close preserves an unusual piece of Edinburgh's transportation history.

Scotland's oldest purpose-built concert hall houses an incredible collection of ornate, centuries-old keyboards.

The colorful stairs are made with marble from the world's major quarries.

A labyrinthine network of chambers with a storied past hides below Edinburgh's South Bridge.