The magic's in the hole!

L. Frank Baum wrote part of the "Wizard of Oz" series in this wooden Victorian beach resort.

The world's longest outdoor covered escalator system transports commuters through Hong Kong's hilly terrain.

Remnants of the most densely packed city in world history, that thrived on anarchy for 30 years.

A beautiful footbridge with over 2,000 glass sculptures along the walls and ceiling.

This famous bridge twisted itself into oblivion, but not for the reason you might think.

A towering bronze statue memorializes the founding father of postwar American conservatism.

A museum and tribute to a brave profession.

A geological mystery on Camelback Mountain.

This Arizona observatory is famous for investigations into Martian life, and as the place humans first spotted Pluto.

Limestone caves with spectacular showcase chambers.

An homage to everyone's favorite prehistoric cartoon family.

A reproduction of earth's many biomes.

This rustic cabin, outfitted with gun slits, was once home to John D. Tewksbury, patriarch of the bloodiest family feud in American history.

This striking public art installation is suspended above a public park, designed to gently move in the breeze.

One of the few guarded stops along the great spice route.

This unassuming oasis elevated just above the busy streets of Jerusalem offers one of the best views of the Old City.

The only quarter of the Old City not dedicated to a major world religion.

An ancient tunnel in Jerusalem built to redirect water in the event of a siege is one of history’s great architectural innovations.

The maze-like transportation hub contains abandoned areas, derelict stores, and a resident bat colony.

Hidden beneath a washing machine in a fake kibbutz, this secret bullet factory has been preserved as a museum.

Israel's first dedicated natural history museum is home to 5 million specimens and still growing.

As the Dead Sea continues to deplete, massive sinkholes open along its banks.

This tree was extinct for a thousand years before sprouting again from a 2,000-year-old seed.