Huge winged monument in the United Kingdom.

A naturally mummified 2,000-year-old man.

Walk in the footsteps of the gods and straddle two tectonic plates.

Medicinal spa created with the discharge from a geothermal energy plant.

Eclectic collections, artwork, and some feline friends fill the writer's former home.

A grand Gothic Revival basilica with stained glass depictions of Montreal's religious history has only one soul resting in its crypt.

Traditional 11th-century outdoor tannery.

An eerie, derelict amusement park in Berlin.

Cold war icon and onetime "hole" in the iron curtain.

Blitzkrieg bop your way through Berlin's Ramones Museum.

A collection of abandoned typographic signs from Berlin and beyond.

The largest free-standing aquarium in the world resides in a hotel lobby in Berlin.

Turning night into day in Victorian-era Austin to thwart a serial killer.

Peek through the gates at this oasis from the city, full of Old English charm.

Curious crustaceans support an obelisk from ancient Egypt that now stands in modern-day Central Park.

A 120-year oil leak slowly unleashes more gallons of oil than the Exxon/Mobil disaster.

A 9-story, poured concrete structure which was used as a glue factory with an indelible smell.

A modern addition to the Greenpoint skyline.

Once called Winthrop Park in 1889, home to a decidedly sexy tribute to the Monitor vs. Merrimac battle.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

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

Neoclassical bank designed by NY architects Helmle & Huberty.

The New York hotel where tragic visionary Nikola Tesla spent his final hours, destitute and alone but for the pigeons.

Known as the "Forgotten City" it was home to industry, riots, artists, squatters, and to one of the largest single disaster fires in New York City.