Futuristic apartment blocks are the backdrop for Montreal surfers hangin' ten on the Habitat '67 standing wave.

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.

The Dover International Speedway is home to a towering, concrete-skinned, racecar-hungry behemoth.

This splendid Versailles-inspired mansion has the largest French-style formal gardens in North America.

An eerie diorama that captures the majestic nature of a few prehistoric-looking beasts.

This taxidermy scene brings the struggle for survival in the Indian jungle to a quiet corner of a Manhattan museum.

This poignant display is now a memorial to these regionally extinct species.

Creating this diorama spurred naturalist Carl Akeley to begin advocating to protect the apes.

One of the most dazzling dioramas at the American Museum of Natural History is also one of the oldest.

This impressive scene portrays the elusive forest giraffe of Central Africa.

This magnificent herd of stampeding elephants has been frozen in time for over a century.

This Manhattan skyscraper is a reminder of the brief but glorious age of urban air taxis.

This nearly invisible wire transforms much of the city into one big, symbolic home on the holy day.

Pulled from the rubble of one of the worst modern tragedies, a steel crossbeam became a symbol of hope for New Yorkers.

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

The first piece of public art dedicated to LGBT rights.

Possible relics of the ancient Roman city are hidden in this restaurant's façade.

A famous songsmith's custom piano, dubbed "High Society," is hidden just out of sight in one of New York's finest hotels.

A crumbling staircase in upper Manhattan is all that remains of one of the most important sites in sports history.

This Fifth Avenue church has long been the favored worshiping place of Broadway actors and vaudeville performers.

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

What happens here stays here – unless it affects the whole world.

There must be a pun in this haystack somewhere...