Captain John Smith thought these cliffs were amazing in 1608 but sharks thought so 20 million years before him.

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

Dedicated to a U.S. Army lieutenant colonel who was also a bird watcher and artist.

A former major munitions plant that has been converted into a sprawling art space.

A fantastic array of trays and cables once whisked books over to the Capitol at 600 feet per minute.

The most accurate timepiece in the world.

The rooster who crossed the road lives on forever in Takoma Park, Maryland.

A girls' boarding school inspired by the Chicago World's Fair, once abandoned, now restored to strange and scenic glory.

Crammed into a Baltimore row house is an oddities shop that sells everything from skulls to dead insects.

This Asian-inspired tower in a lush urban park provides spectacular panoramic views of Baltimore.

The site where Poe "in great distress, and ... in need of immediate assistance" likely died.

In Oklahoma City's Bricktown, there's a street that don't use jelly.

The largest cattle market on earth holds live auctions open to the public every week.

The world's tallest doric column is this Ohio monument to a naval victory in the War of 1812.

A living maritime paradox still floats in the same lake where it was built and resurrected... or was it?

This macabre shop, filled with art, oddities, and taxidermy is hidden in the heart of the French Quarter.

This cathedral dedicated to Louis IX, sainted King of France, holds many secrets.

A collection of 20th-century automata, penny arcade games, and musical contraptions.