A hidden pet cemetery honors the generations of canine companions from one of Pittsburgh's most famous estates.

The cold-blast iron furnace generated 1,000 tons of iron per year at its peak.

There are many ways to enjoy this old-growth forest and its views.

A display of torture devices used in the Spanish Inquisition and other scourges of medieval Europe.

This unassuming bookstore in the heart of Madrid is one of the oldest in Spain.

This small museum tucked within a subway station holds pieces from Madrid's past.

There aren't too many operational funiculars around, but Pittsburgh has two!

Mural made of 100,000 pieces of hand blown glass, and one of the largest glass murals in the US.

Alexander Hamilton’s creation caused quite a bit of controversy.

This overlooked courtyard and museum celebrate Benjamin Franklin's life and achievements.

One of the best examples of the modernist movement in Madrid.

Inside this church are the alleged remains of the patron saint of lovers, epileptics, and beekeepers.

A dozen U.S. presidents have stayed at the historic resort, which was known as James Buchanan’s “Summer White House” from 1857-1861.

This Art Deco service station has been providing tune-ups and turning heads for close to a century.

This titanic java kettle is one of the many kitschy landmarks located along America's OTHER famous highway.

Check out the 125-pound chocolate reindeer in the back of this candy shop.

Gleaming self-built castle towers made from beer cans and inspired by "Vitamin Mary Jane."

The childhood home of Henry Jones Jr. is now an adventure-themed bed and breakfast.

These aggressively sustainable art homes look like something out of 1970's science fiction.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

This innocuous New Mexico storefront was once the secret jump-off spot for Manhattan Project scientists.

A natural formation that resembles a camel resting in the New Mexico desert.

A small side chapel in Santa Fe's basilica is home to the oldest statute of the Virgin Mary in North America.

This southwest-styled home in Santa Fe claims to be the oldest house in America thanks to an ancient bit of foundation.