An underground magnet for ever-changing street art.

The record holder for the world’s largest peach.

One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

The ruins of this Thomas-Jefferson-designed mansion have been left to crumble since the Christmas Day they burnt down.

Exact replica of the ancient monument, but much, much lighter.

The maritime museum that boasts the largest nautical library in the western hemisphere.

The final resting place of two (or three) presidents, one vampire, and 18,000 Confederate soldiers.

This scenic Maryland park was the site of one of the worst prison camps of the Civil War.

This simple stone memorial remembers a secret, Geneva Convention-defying interrogation base from WWII.

A double agent hid information for the Soviet Union beneath this bridge for more than 20 years.

America's first federal monument.

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

The site of the climactic scene from the classic horror film is now a historic landmark.

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

A monument in Washington D.C. marks the spot from which all other roads were supposed to stem.

Home to items never before seen by the public.

Vacant Beaux-Arts buildings that serve as reminders of a beach town’s glory days.

Touching mementoes from those who didn't make it back from World War I still hang in one of New York's oldest bars.

Naturally formed white marble arch housed in an abandoned marble quarry from the 1800s.

Over 50 whirling pools left behind from the glacial age.

An old trolley bridge was converted into a breathtaking garden bursting with colorful flowers.

A grand Gothic Revival basilica with stained glass depictions of Montreal's religious history has only one soul resting in its crypt.

This 1967 experiment in modular architecture was designed to be a new model for urban living.

Designed by Buckminster Fuller, this relic of the 67 Expo survived fire and ice.