Hamburg's first legal sex work is relegated to a gated street that still does not allow pedestrian women.

Hamburgers are intensely proud of their tunnel beneath the river.

Once the tallest building in the world, this abandoned church is now a monument to the destruction of WWII.

A bizarre house filled with an astounding array of collections.

This softly rounded mansion was built without corners not to avoid evil spirits, but to make them more comfortable.

A onetime gangsters' hideaway where you can dine on steaks, fine wines, and cigars just like they once did.

World's second largest particle accelerator, where nature reveals its secrets.

This elaborate Hindu temple is located in a Chicago suburb, but looks like it was transported directly from India.

This sprawling mini-golf empire is an impressive testament to a disappearing attraction.

A tribute to one granddaughter's old apartment which now represents the whims of each visitor.

Recognized the world over as the home of the McCallisters in the 1990 movie "Home Alone."

Despite its name, this fast food museum is actually a replica of the ninth McDonald's store.

This overgrown Illinois water park offers a whole new type of adventure.

This urban drawbridge gained eternal pop culture fame when the Blues Brothers jumped it while it was raised.

The only Bahá'í house of worship in North America and one of only a handful worldwide.

Landmark Chicago building narrowly avoided destruction.

Tijuana's legendary jai alai or "basque ball" palace is now a massive music venue.

A world-class observatory in the California desert.

Oldest building in California still in use.

A large sculptural artwork and garden in Escondido, California.

This dark, quiet forest on the outskirts of San Diego is dense with rumor and lore.

Stripes of flowers bloom each spring in a 50 acre rainbow of color.

A sculpture of the famous photograph stands on San Diego's "Greatest Generation Walk."

One of the few remaining carousels built by master amusement park carver Charles I.D. Looff.