Church in Manhattan holds the bloody sock of Padre Pio, among with many other unusual relics.

The place where Dvořák composed some of his most famous works.

There are owls with glowing eyes in Herald Square.

The one-time office of the architectural firm that ushered in the Gilded Age is now a Club Monaco.

Fake subway tiles were installed to cover a design that resembled the Confederate flag—it's unclear if the resemblance was intentional.

This exemplar of modernist architecture is meant to captivate and inspire students of the Cooper Union.

Amid the marketing blitz of modern Times Square is an elegant holdover from its showbiz glory days.

The 28-foot granite map plots the locations of 40 theaters in New York City.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

A clock set into the concrete outside a Manhattan jeweler has been telling time underfoot for over a century.

This anonymous businessman sculpted in bronze became an enduring memorial after 9/11, and had been mistaken by rescue workers for a survivor in the rubble.

A celebration of capitalism in Midtown.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

The last living thing to come out of the rubble after 9/11 is now a symbol of hope and resilience.

Atlanta's strange assortment of concrete pillars inspires reflection in some, confusion in others.

This intricate Hindu temple is the largest of its kind outside of India itself and was constructed like a giant puzzle.

Believe It or Not, Ripley once called this chiseled mountainside “New York’s Mount Rushmore”.

This old cement mine has been used as everything from a mushroom farm to a recording studio.

A once grand hotel is being retaken by the wilderness it once capitalized on.

An enormous, inside-out glass globe built in 1935.

A rotating cast of guys and dolls in front of a Washington, D.C. building.

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