Buy your fish and have it cooked to order in this bustling, eight-floor seafood market.

About as hidden as can be, this specialty coffee shop is wedged between multi-story buildings at the end of a dark, skinny alleyway in Seoul.

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

These markers are used to determine the ground stability of the Strip.

A tower that pays homage to local sailors who perished under the waves.

A detached cement mixer has been transformed to resemble a relic from some obscure NASA mission to Oklahoma.

A view-altering observatory at the University of Texas.

This massive oak tree has ties to the first native tribes of the region and the founders of Texas.

After 97 years of constant vigilance from the dome of the Texas State Capitol, the original Goddess of Liberty retired to a life of climate-controlled leisure.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

Turning night into day in Victorian-era Austin to thwart a serial killer.

This bird-loving brewery is situated in an old municipal bathhouse, nestled beside a 300-year-old windmill.

Established in 1638 to battle the Black Death, Hortus Botanicus Amsterdam is a treasure trove of rare flora.

The last of Amsterdam's original sea level markers remaining in place.

A floating cat sanctuary on an Amsterdam canal.

The final remnant of the Arkansas zinc industry is this historically protected ghost town.

The Ozarks' strangest dwelling.

A mysterious light of unknown origin on the backroads of Missouri.

This futuristically sylvan church is a glass-enclosed marvel of modern architecture.

This century-old roadside attraction is full of bizarre rock formations.

This historic motel standing at the "crossroads of America" offers a radio in every room and was saved by local protesters.

Twenty-year effort to raise a castle using tools and techniques from the 13th century is now abandoned in the Arkansas woods.

When he found his hometown was no more, Lowell Davis decided to recreate a "new" ghost town from scratch.

If there's another drive-through golf-cart bar in a bat-filled cave on top of a mountain, we don't know about it.