A grassroots community effort in the 1970s led to the creation of this beautiful garden full of delightfully whimsical exhibits.

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

Home to items never before seen by the public.

The trials and tribulations of marking Poe’s grave.

Go take a picture with the inventor of the daguerreotype photographic process.

This unique museum cafeteria showcases the history and regional diversity of African American cuisine.

Look closely and you’ll notice that the color changes a third of the way up the tower.

Hidden away in the city of Madison, Wisconsin is a nearly forgotten home that Frank Lloyd Wright built for a childhood friend.

One of the last surviving C-97s sits in a field in front of a Wisconsin inn.

The spaceship-like theater, which is still in use, was one of the most popular exhibits at the 1964 New York World's Fair.

100 massive sculptures in the Hudson River Valley.

This amazingly well-preserved villa just outside Pompeii boasts rare examples of ancient Roman paintings.

The walls and streets of the ancient city are peppered with penises.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

Erotic art covers the walls of the largest ancient pleasure palace.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

Five sultans and their families rest in eternal splendor, teeming with overlooked beauty and drama.

World's tallest monolithic statue has served as a pilgrimage site since its completion in 993 CE.

This 17th-century mausoleum is topped with an acoustic marvel.

The remains of what was, not so long ago, the world's largest city.

Once the tallest building in the world and the site of “the highest dinner ever held in New York” this building now holds the most expensive penthouse in the city.

Frank Lloyd Wright’s most iconic home dangles over a Pennsylvania waterfall.