A jewel of the Mexico city skyline now slowly crumbles after surviving an earthquake.

The ruins of the bathhouse used by the ill-fated last Aztec emperor still lie in Chapultepec Park.

Now a secluded county park, this site was once a "health tourism" destination for wealthy Oregonians.

A working steam clock, one of only a few in the world, located in Vancouver's Victorian Gastown.

The seamy, underground secrets of Portland's criminal past.

The magic's in the hole!

An emporium for the weird, creepy, rare, and just plain gross.

The U.S. Navy's last diesel-electric submarine rests half-submerged in the middle of Portland.

Journey through a bit of nostalgia inside this classic record and video store.

A brief journey through early 19th-century pioneer life across Linn County.

The last water-powered mill in Oregon is open daily for free tours and has a surprising history.

A haven for wildlife amid the farmlands and development of the Willamette River Valley.

The first North American landing spot for James Cook on his third voyage of discovery in the Pacific.

This incongruous small ferry across the Willamette River north of Salem, Oregon has been operating continuously since the 1850s.

Multiple waterfalls and several historic CCC buildings anchor this state park in Oregon's Willamette Valley.

This bridge over D.C.'s Rock Creek Park is sometimes called the "Buffalo Bridge" because of its four buffalo sculptures, which were cast from a single piece of bronze.

The romance of early commercial flight still fills this Art Deco destination.

This lovely picnic spot featuring thunderous jet landings is an aircraft spotter’s dream.

At 207 feet, one of the world's longest continuous escalators.

The national park was once a plantation estate.

There's an old indoor swimming pool hidden directly underneath the White House Press Briefing Room.

Legend has it that President Grant’s frequent drinking in the lobby gave rise to the term “lobbyist.”

Railroad officials in the early 1900s sought to spare travelers the sight of Roman soldiers’ private parts.

A 1,100-ton train fell through the floor in 1953. Workers got it patched up in just 72 hours.