The remains of this ancient fortress atop a manmade hill look as though they were built into a volcano.

The home of the Dead Sea Scrolls is an abstract modernist dream.

A "miracle" that seems to produce more holy fistfights than holy revelations.

An ancient quarry rediscovered by a dog and claimed by biblical kings, a German cult, and the Freemasons.

This archaeological site was the center of the extinct Yarmukian culture which developed the first roads and pottery in Israel.

Submerged ruins of a Neolithic coastal settlement, where houses, wells, graves and skeletons have been unearthed.

This micro-nation may be some sort of prank, but its constitution sure seems official.

Things aren't quite what they seem at this mind-bending museum.

Quirky movable sculptures have been racing through the town since 1983.

A suburban street in Anchorage doubles as a runway, and each home has its own airplane hangar.

Commercial airplanes land mere feet over the heads of sunbathing beachgoers on this tiny island.

The shortest in the world, this landing strip stretches a mere 1,312 feet before steep cliffs on either end plunge into the Caribbean.

This beach runway is off limits during high tide.

A small museum filled with over 1,000 clocks, and one particular clock calibrated to run until the year 9999.

Handsomely crafted representations of our round planet.

Macabre museum devoted to historical Viennese murders.

The former private quarters and office of Dr. Sigmund Freud now hosts a museum housing the works of the founding father of psychoanalysis.

This Austrian museum celebrates the work of famous forgers and their inimitable imitations.

A spherical "micro-nation" in the heart of Vienna.

Op-art architecture designed for happiness.

Giant WWII fortresses that fired 8,000 rounds a minute, now home to thousands of pigeons.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

Apartment complexes built into huge repurposed natural gas tanks.

Vienna's underworld of tunnels and subterranean rivers made an iconic appearance in a 1949 Orson Welles film.