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

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

The celebrated eyesore created by starry-eyed sweethearts.

Elevated freight railway turned wildly successful urban park.

A giant Troll lurks under one of Seattle's oldest bridges.

Try not to get slimed in Tribeca.

A walk through the historic city center, under the streets of Seattle.

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

The sign at the garden gate reads: "These Plants Can Kill."

The vast, legendary catacombs hold secrets much stranger than stacked bones.