Thomas Jefferson's estate is home to hundreds of varieties of historic fruits and vegetables.

Surrounded by industrial sprawl, a small monument marks the site of William Penn's first landing in Pennsylvania.

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.

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

A secret, ethereal waterfall beneath the picturesque gardens.

The longest covered bridge in Delaware.

The smallest and oldest covered bridge in Delaware.

Once used as a deterrent to drinking alcohol.

World War II-era bunkers are hidden under the beaches of this picturesque park, which is still scattered with wartime watchtowers.

Designed to commemorate the founding of the first settlement in Delaware.

The historic home still shows the scars from a little run-in with the British in 1813.

The Dover International Speedway is home to a towering, concrete-skinned, racecar-hungry behemoth.

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

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

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

A drab two-story office space in Delaware is a hidden tax haven for Hillary Clinton, Donald Trump, and over half the Fortune 500 companies.

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

This wildflower meadow was once the site of America's oldest operating paper mill and a symbol of Newark's manufacturing past.

This school was designed to support the rebuilding of African American schools around Delaware.

A scenic fort on the harbor protected Philadelphia from an attack that never came.

This historic Georgian mansion contains a hidden room that was used to harbor a fugitive in the days of the Underground Railroad.