This unassuming chapel in Portugal plays host to a ghoulish collection of bones.

This small chapel is built of human bones and decorated with a golden skeleton.

The extravagance of Portugal’s "Pink Palace" resulted in a noble title being awarded to its owner.

The exterior of this home was used for the hit television show, The Brady Bunch.

This 15-story mural celebrates the 50th anniversary of the musician's iconic "At Folsom Prison" album.

A replica of the first public theater built in California.

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

Where the first "expert riders, willing to risk death daily" for the Pony Express were recruited.

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

Art Deco stylings conceal the true nature of this bridge.

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

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

Celebrating Colombian coffee growers with a big gulp of a sculpture.

The second largest waterfall by volume in the U.S., Willamette Falls is outdone only by Niagara in the amount of water that is pushed northward.

Home to the only outdoor municipal elevator in the United States.

North America's largest accredited model railroad museum.

An Egyptian-revival style film house in Boise, Idaho.

The oldest continuously occupied public building in the United States.

This giant pocket watch is the third iteration of a local landmark that has been standing just off the Santa Fe Plaza for over 100 years.

One of the most colorful free outdoor attractions in San Diego, this park is filled with murals and ties to history.

This historic graveyard was partially paved over to create a streetcar line.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

Go deep on these fascinating fish, and get a bonus lesson on the importance of marine conservation.

A dramatic coastline that’s home to a rare pine tree.