The oddly shaped, steam-spewing building is now an art studio and gallery.

"Congress may voluntarily remain in session throughout the summer, in order that our Congressmen may be protected from the intolerable discomforts and dangers of the ordinary outdoor weather!”

An uber-secure, windowless tower of doom in the center of Manhattan is an NSA spyscraper.

A historic estate packed with George Washington's heirlooms, and its own nuclear bunker.

A house of courtship where the Jazz Age's most storied lovers got their start.

The former home of the hard partying literary power couple is now one of the only museums devoted to their story.

Edgar Allan Poe's old dorm is now a shrine to the author's legacy.

The last holdout of a pre-Civil War rebel who took the matter of slavery into his own hands.

This campus chapel is Robert E. Lee's final resting place and a topic of debate about the legacy of the Civil War.

During the summer, surfers in Alaska take advantage of this inlet’s unusual water patterns.

A Community Cornerstone.

The legendary building that needed ghostly approval before being built.

This opulent hotel has been visited by Spider-Man, Charlie's Angels, and the Ghostbusters.

The controversial urban planner who designed Washington, D.C., was buried in Maryland, and can presently be found in Virginia.

The oldest continuously operating fish market in the United States.

The unique traffic pattern named for an influential urban planner is also known as the Pedestrian Scramble.

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

This church built atop a gas station promises to "equip you for the next stage in your life’s journey."

The little-known, 300-year history of the area includes former lives as a bustling tobacco port, parking lot, and industrial dump.

This unacceptably tall building was the real reason for Washington, D.C.'s skyscraper ban.

The Kirkland Monument remembers a selfless Civil War hero who braved the battlefield to give water to his dying enemies.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

The unbelievably opulent home built for an infamous newspaperman.

A painfully obvious spy house sits right across the street from the Russian Embassy.