Delaware's first railroad lasted only five years and spanned only 16 miles, but its ticket office has survived for two centuries.

The meeting of the northwestern corner of Delaware, the northeastern corner of Maryland, and the southern edge of Pennsylvania.

The second oldest and longest of Delaware's three covered bridges.

This local gem houses the largest collection of pre-Raphaelite paintings outside of the U.K.

This splendid Versailles-inspired mansion has the largest French-style formal gardens in North America.

The smallest and oldest covered bridge in Delaware.

This might just be the TARDIS of bookstores.

An award-winning children’s garden enchants visitors at the intersection of natural beauty and fairy tales.

These lush botanical gardens employ the most purrfect pest control force.

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

A blend of art, antiquities, and Americana fill this museum, surrounded by whimsical, enchanting gardens.

The longest covered bridge in Delaware.

These ruins of an octagonal stone school that was later used as an A.U.M.P. church exemplify a popular school design from the 1830s.

Color-coded signs direct drivers on a network of routes designed to avoid Pittsburgh traffic.

The last remnants of Fort Pitt also hold the distinction of being the oldest structure west of the Allegheny Mountains.

The legacy of baseball great Roberto Clemente is preserved in a retired Pittsburgh fire station.

Sections of the iconic limestone columns have been left uncleaned as a reminder of the city's polluted past.

This public park was the site of the largest civilian disaster of the Civil War.

Once used to screen films for theater owners to rent, this historic building is now a start up hub.

Meet your friends, marry your true love, or tell your enemies to kiss your butt under this historic Pittsburgh timepiece.

A model of a dinosaur that was named for Andrew Carnegie stands outside the museum that also bears his name.

The residents of the Neighborhood of Make-Believe live without much fanfare within the Pittsburgh Children's Museum.

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

The only way to see Pittsburgh is from the top of this lookout point, just like the ancient members of the native peoples did.