Air Force Academy Chapel made of 100 identical tetrahedrons works to inspire those of all religions.

Used as an example in one of the first dictionary entries for "museum" in 1706.

Home to the most complete dodo remains known - one head, and one foot.

Ancient Egyptian wigs, South American feather headdresses, a bounty of anthropological artifacts in Oxford.

Remnants of a storybook amusement park hidden behind a strip mall.

This advertisement for talcum powder was painted on the rock face and has since defied removal.

A suburban museum tells the story of a historic transportation network and even provides rides in antique trolley cars.

Rediscovered after a century, the father of the American Navy was reinterred in something dredged up from Davy Jones' Locker.

The longest escalator in the Western Hemisphere takes over three minutes to ride down.

The land is home to swimming ponies and a legendary 18th-century treasure.

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

The beloved, war-tested mascot of a Union regiment graces their battlefield monument.

This Delaware River bridge is emblazoned with a catty slogan from a more prosperous time.

An Olympic hero stripped of his medals is buried in a town he never visited, which took his name after his death.

A tour de force of a fountain, memorializing a man who loved fountains more than anything else.

Current docking place of the SS United States, the fastest transatlantic ocean liner.

A local prank turned town icon.

This lush forest valley was once mined for lumber to the extent that it was once nicknamed "The Pennsylvania Desert."

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.

In which a local geological marvel becomes a quaint roadside attraction.

Eccentric concrete mansion and museum designed and built by hand from the inside out.

This steep cable railway has been hoisting passengers in the heart of Québec City for over a century.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.

This statue was a gift to commemorate the Thai monarch's first visit to a foreign land.