An abandoned shopping gallery built during Fascist Italy tucked in the center of Palermo.

This triumphal 16th-century arched gateway leads to the oldest street in Palermo.

A medieval wash house where people washed clothes in a river allegedly formed by the tears of a mourning nymph.

A glorious pub known for a spiteful printing feud and its famous typeface lost—then found—at the bottom of the Thames.

A museum dedicated to the tragedy of Bloody Sunday.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

The modern birthplace of Irish freedom.

These tombs were built into the side of a mountain so that ancient angels could reach the dead.

Hidden just under the waters around this Turkish island are the ruins of a once great city.

Monument that stands 40 feet and weighs 1,000 pounds.

Three-story concrete ram with a permanent gift shop.

The sand is such a bright white that on sunny days you practically need sunglasses to look at the ground.

This massive water spout has been luring visitors for hundreds of years, some to their death.

This trio of Australian rock spires may have inspired aboriginal legend or just modern tourism.

A sparkling sandstone cliffside that's worth a visit while it still exists.

The largest necropolis in the Southern Hemisphere.

Nature is leading a successful mutiny on this century-old freighter.

A boardwalk winds through this sliver of coastal nature hidden within Sydney.

The Victoria-era quarantine station for Sydney.

A self-funded cemetery with a long list of inhabitants.

The yawning remains of a complex naval fortress still haunt this Australian shore.

One of Sydney's oldest graveyards hides in plain sight behind a hospital.

One of Australia's largest secondhand bookstores.

This rare effigy of the author spent years lost in storage.