Copenhagen's celebrated theme park and gardens.

The old observatory in Copenhagen has a spiral corridor used as a racetrack.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

This valley of hot springs and boiling mud pots is home to the record-holding "Geysir," which originated the English word.

This stunning concert hall has become a symbol of Iceland's national recovery.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

This beautiful, historic church looks like something out of a simpler past.

This eye-popping Icelandic crater lake is surrounded by red volcanic rock.

Medicinal spa created from the mineral-rich runoff of a geothermal power plant

This Upper East Side apartment co-op was designed as a tuberculosis sanitarium.

This simple Manhattan salt house is artfully shaped... well, like a giant granule of salt.

The home of the first American-born saint is one of the only curved buildings in New York.

A 19th-century politician who died after walking home in a blizzard is honored with this Manhattan statue.

This monument to a veteran of the Mexican-American War is one of only two in Manhattan that serve as an actual mausoleum.

Magnificent New Deal Murals evoke a time when New York City harbor was one of the world's greatest and busiest ports.

Rat sculptures try to infiltrate the Graybar Building in an architectural tribute to New York City's nautical history.

This wall on a street corner in Lower Manhattan has been a blank canvas for a rotation of renowned artists since the 1980s.

A Yiddish theater turned movie house turned rock and roll landmark turned gay disco turned bank.

Beautiful mosaics cover the first stations opened on New York City's newest subway line.

Where now stands a 42-story condominium tower of marble, glass and steel was once the central market of New York’s slave trade.

Monument to a forgotten NYC disaster that claimed the lives of 1,000.