An elevator into the Baltic Sea.

The largest and most famous wax anatomical collection anywhere in the world.

This curious building hides eclectic details like medieval gargoyles alongside naked angels and Art Nouveau mosaics.

Six beautiful wooden giants are hidden around Copenhagen.

Every equinox this Maya pyramid puts on a spooky ancient light show.

I Street Bridge is the heaviest swinging center bridge in the United States.

The California capital city once stood 10 feet lower than it does today.

This 19th century train workshop is a treasure trove of railroad history.

A tiny survivor of the Donner Party disaster.

Believed to have once stored either human remains or rice wine, thousands of mysterious stone jars lie in ruin.

Europe's largest natural bridge has a 19th century royal chateau built into its side.

A small Montana town commemorates the dog who waited at the train station every day for his owner to return.

Submerged trees jut ghost-like out of an idyllic turquoise mountain lake.

San Francisco's most expensive hotel suite includes a secret passageway rumored to have been used by JFK.

Though tiki culture has gone in and out of fashion, the Tonga Hut has always been flying the flag in Los Angeles.

An aluminum skeleton brings Chinese mythology to the French shore.

An art supply shop holds the secrets of this quiet neighborhood's raucous Barbary Coast past.

Home of modern dancer famously strangled by her own scarf.

San Francisco's first World's Fair, dedicated to the wonders of California.

A pair of mutilated bronze octopuses slump at the base of the monument honoring California's admission to the U.S.

These subterranean storage areas hold emergency water reserves.

Art in the form of a winding, man made crack in stone.

The taxidermied remains of the "last wild grizzly bear in California" and of the symbol of the state of California.

San Francisco's oldest operating hotel, with a Victorian atmosphere and a "haunted" fourth floor.