This short bridge is the only thing connecting a tiny Irish island to the mainland.

Northern Ireland's Brobdingnagian stepping stones.

This Italian-style temple replica has been threatening to fall off the Irish coast for hundreds of years.

A retired military stronghold on the rolling green coast of Donegal.

This innocent-looking townhome is actually a subway exit.

The gilded vestiges of a sterling department store can still be found in a Brooklyn shopping center.

Risk arrest while partying to fund art.

This city park was once a lookout point for George Washington’s army during the Battle of Brooklyn in 1776.

Sniff the Titan Arum's rotting flesh.

An illegally built ramshackle mansion tucked in the middle of Brooklyn is now being turned into condominiums.

"The only replacement for a DC-3 is another DC-3."

Sports history, made in the Arroyo Seco.

World-famous, Pink's still manages to keep its prized cult fetish status.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

Historic funicular railway, believed to be the shortest railroad in the world.

The one-stop shop for all of your superhero (or evil arch-nemesis) needs.

A museum devoted to bringing to light forgotten or neglected histories through exhibitions, education and public programming.

A terrific purveyor of natural history objects and curios.

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

A crumbling hospital from the 1850s on Roosevelt Island.

This ghost town in Belgium will lose its street art when it ceases to exist.