Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

One of only two commuter aerial tramways in the United States.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

Mysterious 500-year-old tapestries depict a unicorn hunt.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

The first and only carousel with a lineup entirely of insects.

Ride the subways of yesteryear.

A crumbling hospital from the 1850s on Roosevelt Island.

This charming cobbled backstreet is the most Instagramable street in Paris, much to the residents' annoyance.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

France's most famous cemetery, with some of its most curious tombs.

A towering tribute to decisiveness stands on the spot where Brigham Young and his followers decided that this must be the place.

Eat burgers beneath gargantuan taxidermy and thousands of dollar bills in Utah's oldest continuously-operating bar.

This geothermal hot spring hides beneath a slowly growing mineral dome.