The artist behind this historical depiction of transportation remains a mystery.

Throughout this shopping mall are medieval ruins that were discovered during the mall's construction.

A giant Australian fruit and tropical farm.

A 200-year-old collection of oddities and medical paraphernalia.

This townhouse was once the original home of the Scottish Football Association.

Inside this art museum resides one of Glasgow's most famous musical instruments.

The old tradition of drying laundry on poles in the public green is still guaranteed by Glasgow city law.

Displaced highlanders would take shelter from the wet Scottish climate under the large walled bridge at Glasgow Central Station.

This stately monument has been wearing a traffic cone hat for decades much to the delight of the locals.

An archeological treasure trove stumbled upon by a couple of children.

The eclectic observatory castle of a 19th-century astronomer and explorer.

This huge abandoned fortress hidden inside a mountain holds a world of subterranean secrets.

Once the most flame resistant building in the country, the South Carolina Historical Society building was almost burnt down in a fire.

Pilgrimage site for star-crossed lovers.

This winding road through an Italian canyon may be the most scenic drive in the world.

This iconic 1958 tower welcomes air travelers to Tucson with neon-lit letters and architectural style.

A cabinet of curious mathematical models and old calculators.

The awe-inspiring ship from the golden era of cruising has an incomparable history and a reputation as one of the world’s most haunted places.

L. Frank Baum wrote part of the "Wizard of Oz" series in this wooden Victorian beach resort.

This centuries-old hotel hides a network of secret cellars and passages once used by smugglers.

The walls and streets of the ancient city are peppered with penises.

Part bookstore, part café, and part forest.

Discarded animal sculptures stand forgotten by an abandoned aquarium and water park in Bosque de Chapultepec.

Diego Rivera's massive tiled fountain and failed infrastructure project.