A massive sea stack famous for its appearance in The Goonies.

This huge, disused viaduct is now a crumbling concrete underworld of covered in years of graffiti.

The cave where two British judges hid in exile after sentencing the king to death.

A full-size replica of this well-preserved temple lets you take a walk through the Mayan age.

This staircase full of Mayan hieroglyphics is perhaps the largest single text in the world.

One of the ghostly stops along Route 66.

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

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

Iceland's largest lagoon is home to stunning multi-colored icebergs.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

A semi-scholarly approach to sex.

Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

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

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

Elevated freight railway turned wildly successful urban park.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

The ghostly remains of an accidental sea.

High on a hill overlooking Los Angeles lives a world famous, high-power conical Tesla Coil.

A huge musical instrument played by the ocean.