Overlooking the Colorado Convention Center is this giant sculpture made from thousands of triangles.

Neal Cassady may still have an open tab at one of Denver’s oldest watering holes.

A focal point of in Denver’s skyline for over a century, inspired by a Venetian basilica.

This was once the home of Gahan's Saloon, Denver's most storied speakeasy.

In a small Japanese garden off a busy Denver street, a memorial to a brave, principled politician.

This pole near the infield rail at Belmont Park marks the jaw-dropping margin of Secretariat’s 1973 Belmont Stakes victory.

Though the case is scorched and the buttons half-melted, this hardy handheld gaming device can still run a game of Tetris.

A commemorative plaque hides a door that leads down to the New York Public Library's underground book bunker.

The oldest private residence in New York City.

Built in the 1920s, this co-op in the Bronx feels more like an Italian villa than a typical New York apartment building.

The longest step street in the city.

Now owned by the National Park Service, this location was once home to illegal boxing matches.

The only gallery in New York dedicated to olfactory art and the exploration of scent in art.

Amid skyscrapers and traffic exists this unique aquatic ecosystem.

An institution dedicated to the towering buildings that make up skylines in New York City and around the world.

The façade of this building looks like a bingo board, but it's really a giant clock by a famed graphic designer.

The final resting place of a former Dodgers and Mets player can be found in central Brooklyn, in the first diocesan cemetery for Catholics in the borough.

In Little Caribbean, an ice-cream shop serves up regional flavors, including soursop, Irish moss, and "greatnut."

A series of fish plaques that are embedded in the malls of Ocean Parkway.

This unique house, the only one of its kind in Brooklyn, was built as part of a real estate developer's showcase.

The famed amusement district marks the beginning of summer with a wild procession of nautical creatures.

This upscale streetwear store is hidden behind a fake Snapple machine in the back of a deli.

One of the last remaining movie theatres in the country that features a rear-projection system.

Memorial to a beloved puppeteer as well as all street performers.