An emerald-green grotto just a short trip from Austin.

This unique structure in suburban Austin is made up entirely of other people's castaways, and constantly changing.

Free public park and gardens filled with peacocks and peahens.

A veritable variety of odds and ends.

Four cars from the old system were once on display, but were removed in 2014.

In the middle of downtown Brooklyn lies a 165 year old secret hidden right below the surface (closed to the public indefinitely).

A modern zoetrope on the New York City subway.

A curious friendship between two inanimate ladies.

One of the deadliest American air disasters is nearly forgotten in Brooklyn.

A mass grave for victims of one of the city’s worst fires.

Resting place of the Texas A&M canine mascots, who watch the game from the grave with their own miniature scoreboard.

New Orleans' famous cemetery, located on the site of a former race track.

The LSU mascot lived on the college campus in one of the most impressive tiger habitats in the country.

Ancient cliffs resembling a kilt on Scotland's second largest island emit an entrancing sound.

A nuclear bunker built to shelter the politicians and important people of Scotland in case of nuclear attack.

Old-fashioned knowledge and modern engineering create the world's only rotating boatlift.

Largest lake in Great Britain measured by surface area.