A surprising collection of bronze faces beneath a bridge in Loveland.

Preserved Inca city and site of the last Inca stronghold against the Spanish conquistadors.

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.

Washington's iconic carousel has a nice piece of Civil Rights history.

Members of Congress have traveled between the buildings on Capitol Hill for a century hidden from tourists, press, and storm clouds.

A traveling postal dog covered 48 states and more than 140,000 miles, and he lives on as taxidermy, patched up with a rabbit's foot and a pig's ear.

The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

Fittingly, America's museum of architecture is itself a magnificently designed old building.

Home to items never before seen by the public.

Dozens of elegant ceramic tiles decorate these ancient walls, each displaying the Lord's Prayer in a different language.

A "miracle" that seems to produce more holy fistfights than holy revelations.

The home of the Dead Sea Scrolls is an abstract modernist dream.

This iconic science fiction house still looks like something from the future.

A small horde of mythical creatures lurk almost imperceptibly within the museum's wildlife dioramas.

This museum offers an actual time machine back through Colorado's past.

One of the greatest heroes of the Titanic tragedy came from humble beginnings to this beautiful home.

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

This underfoot portrait is the work of a disgruntled painter inspired by a tragic poem.

The world's largest carnivore sanctuary is home to over 450 meat-eating rescues.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

This "zoo" is a cross between a junkyard and a sculpture garden, featuring animals you won't see anywhere else.